Finding the Fourth Proportional to 113,576.73, 156,730.90 and 65,144.10

Step by Step Solution

1. Step 1: Write the proportion equation
   113,576.73 : 156,730.90 = 65,144.10 : x
2. Step 2: Convert to fraction form
   113,576.73/156,730.90 = 65,144.10/x
3. Step 3: Cross multiply
   113,576.73x = 156,730.90 × 65,144.10
4. Step 4: Simplify right side
   113,576.73x = 10,210,093,088.10
5. Step 5: Solve for x
   x = 10,210,093,088.10/113,576.73
6. Step 6: Final answer
   x = 89,895.99