Finding the Fourth Proportional to 265,700,111.57, 398,523,258.01 and 71,631,144.39

Step by Step Solution

1. Step 1: Write the proportion equation
   265,700,111.57 : 398,523,258.01 = 71,631,144.39 : x
2. Step 2: Convert to fraction form
   265,700,111.57/398,523,258.01 = 71,631,144.39/x
3. Step 3: Cross multiply
   265,700,111.57x = 398,523,258.01 × 71,631,144.39
4. Step 4: Simplify right side
   265,700,111.57x = 28,546,677,037,287,532
5. Step 5: Solve for x
   x = 28,546,677,037,287,532/265,700,111.57
6. Step 6: Final answer
   x = 107,439,461.99