Finding the Fourth Proportional to 113,524.15, 156,663.37 and 65,805.18

Step by Step Solution

1. Step 1: Write the proportion equation
   113,524.15 : 156,663.37 = 65,805.18 : x
2. Step 2: Convert to fraction form
   113,524.15/156,663.37 = 65,805.18/x
3. Step 3: Cross multiply
   113,524.15x = 156,663.37 × 65,805.18
4. Step 4: Simplify right side
   113,524.15x = 10,309,261,262.26
5. Step 5: Solve for x
   x = 10,309,261,262.26/113,524.15
6. Step 6: Final answer
   x = 90,811.17