Finding the Fourth Proportional to 113,222.24, 156,248.16 and 65,477.60

Step by Step Solution

1. Step 1: Write the proportion equation
   113,222.24 : 156,248.16 = 65,477.60 : x
2. Step 2: Convert to fraction form
   113,222.24/156,248.16 = 65,477.60/x
3. Step 3: Cross multiply
   113,222.24x = 156,248.16 × 65,477.60
4. Step 4: Simplify right side
   113,222.24x = 10,230,754,521.22
5. Step 5: Solve for x
   x = 10,230,754,521.22/113,222.24
6. Step 6: Final answer
   x = 90,359.94