Finding the Fourth Proportional to 113,126.13, 156,167.12 and 65,370.15

Step by Step Solution

1. Step 1: Write the proportion equation
   113,126.13 : 156,167.12 = 65,370.15 : x
2. Step 2: Convert to fraction form
   113,126.13/156,167.12 = 65,370.15/x
3. Step 3: Cross multiply
   113,126.13x = 156,167.12 × 65,370.15
4. Step 4: Simplify right side
   113,126.13x = 10,208,668,222.89
5. Step 5: Solve for x
   x = 10,208,668,222.89/113,126.13
6. Step 6: Final answer
   x = 90,241.47