Finding the Fourth Proportional to 113,116.50, 156,114.54 and 65,370.24

Step by Step Solution

1. Step 1: Write the proportion equation
   113,116.50 : 156,114.54 = 65,370.24 : x
2. Step 2: Convert to fraction form
   113,116.50/156,114.54 = 65,370.24/x
3. Step 3: Cross multiply
   113,116.50x = 156,114.54 × 65,370.24
4. Step 4: Simplify right side
   113,116.50x = 10,205,244,947.29
5. Step 5: Solve for x
   x = 10,205,244,947.29/113,116.50
6. Step 6: Final answer
   x = 90,218.89