Finding the Fourth Proportional to 91,607.10, 137,104.47 and 52,153.62

Step by Step Solution

1. Step 1: Write the proportion equation
   91,607.10 : 137,104.47 = 52,153.62 : x
2. Step 2: Convert to fraction form
   91,607.10/137,104.47 = 52,153.62/x
3. Step 3: Cross multiply
   91,607.10x = 137,104.47 × 52,153.62
4. Step 4: Simplify right side
   91,607.10x = 7,150,494,428.68
5. Step 5: Solve for x
   x = 7,150,494,428.68/91,607.10
6. Step 6: Final answer
   x = 78,056.12