Finding the Fourth Proportional to 258,756,145,105.51, 388,142,124,848.92 and 88,773,349,746.72

Step by Step Solution

1. Step 1: Write the proportion equation
   258,756,145,105.51 : 388,142,124,848.92 = 88,773,349,746.72 : x
2. Step 2: Convert to fraction form
   258,756,145,105.51/388,142,124,848.92 = 88,773,349,746.72/x
3. Step 3: Cross multiply
   258,756,145,105.51x = 388,142,124,848.92 × 88,773,349,746.72
4. Step 4: Simplify right side
   258,756,145,105.51x = 34,456,676,600,648,235,483,136
5. Step 5: Solve for x
   x = 34,456,676,600,648,235,483,136/258,756,145,105.51
6. Step 6: Final answer
   x = 133,162,737,397.40