Finding the Fourth Proportional to 108,491,053.76, 149,756,940.96 and 71,833,434.56

Step by Step Solution

1. Step 1: Write the proportion equation
   108,491,053.76 : 149,756,940.96 = 71,833,434.56 : x
2. Step 2: Convert to fraction form
   108,491,053.76/149,756,940.96 = 71,833,434.56/x
3. Step 3: Cross multiply
   108,491,053.76x = 149,756,940.96 × 71,833,434.56
4. Step 4: Simplify right side
   108,491,053.76x = 10,757,555,418,355,944
5. Step 5: Solve for x
   x = 10,757,555,418,355,944/108,491,053.76
6. Step 6: Final answer
   x = 99,156,152.01