Finding the Fourth Proportional to 108,491,055.76, 149,756,943.72 and 71,833,436.56

Step by Step Solution

1. Step 1: Write the proportion equation
   108,491,055.76 : 149,756,943.72 = 71,833,436.56 : x
2. Step 2: Convert to fraction form
   108,491,055.76/149,756,943.72 = 71,833,436.56/x
3. Step 3: Cross multiply
   108,491,055.76x = 149,756,943.72 × 71,833,436.56
4. Step 4: Simplify right side
   108,491,055.76x = 10,757,555,916,130,110
5. Step 5: Solve for x
   x = 10,757,555,916,130,110/108,491,055.76
6. Step 6: Final answer
   x = 99,156,154.77