Finding the Fourth Proportional to 230,074,128.72, 317,510,131.85 and 136,068,858.83

Step by Step Solution

1. Step 1: Write the proportion equation
   230,074,128.72 : 317,510,131.85 = 136,068,858.83 : x
2. Step 2: Convert to fraction form
   230,074,128.72/317,510,131.85 = 136,068,858.83/x
3. Step 3: Cross multiply
   230,074,128.72x = 317,510,131.85 × 136,068,858.83
4. Step 4: Simplify right side
   230,074,128.72x = 43,203,241,307,792,344
5. Step 5: Solve for x
   x = 43,203,241,307,792,344/230,074,128.72
6. Step 6: Final answer
   x = 187,779,658.44