Finding the Fourth Proportional to 113,072.56, 156,021.95 and 65,332.24

Step by Step Solution

1. Step 1: Write the proportion equation
   113,072.56 : 156,021.95 = 65,332.24 : x
2. Step 2: Convert to fraction form
   113,072.56/156,021.95 = 65,332.24/x
3. Step 3: Cross multiply
   113,072.56x = 156,021.95 × 65,332.24
4. Step 4: Simplify right side
   113,072.56x = 10,193,263,482.67
5. Step 5: Solve for x
   x = 10,193,263,482.67/113,072.56
6. Step 6: Final answer
   x = 90,147.99