Finding the Fourth Proportional to 113,607.48, 156,759.88 and 65,851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,607.48 : 156,759.88 = 65,851.50 : x
2. Step 2: Convert to fraction form
   113,607.48/156,759.88 = 65,851.50/x
3. Step 3: Cross multiply
   113,607.48x = 156,759.88 × 65,851.50
4. Step 4: Simplify right side
   113,607.48x = 10,322,872,289.39
5. Step 5: Solve for x
   x = 10,322,872,289.39/113,607.48
6. Step 6: Final answer
   x = 90,864.38