Finding the Fourth Proportional to 880,575,848.56, 1,320,864,019.08 and 258,791,046.72

Step by Step Solution

1. Step 1: Write the proportion equation
   880,575,848.56 : 1,320,864,019.08 = 258,791,046.72 : x
2. Step 2: Convert to fraction form
   880,575,848.56/1,320,864,019.08 = 258,791,046.72/x
3. Step 3: Cross multiply
   880,575,848.56x = 1,320,864,019.08 × 258,791,046.72
4. Step 4: Simplify right side
   880,575,848.56x = 341,827,782,072,499,200
5. Step 5: Solve for x
   x = 341,827,782,072,499,200/880,575,848.56
6. Step 6: Final answer
   x = 388,186,642.45