Finding the Fourth Proportional to 113,543.86, 156,690.57 and 65,824.87

Step by Step Solution

1. Step 1: Write the proportion equation
   113,543.86 : 156,690.57 = 65,824.87 : x
2. Step 2: Convert to fraction form
   113,543.86/156,690.57 = 65,824.87/x
3. Step 3: Cross multiply
   113,543.86x = 156,690.57 × 65,824.87
4. Step 4: Simplify right side
   113,543.86x = 10,314,136,400.48
5. Step 5: Solve for x
   x = 10,314,136,400.48/113,543.86
6. Step 6: Final answer
   x = 90,838.35