Finding the Fourth Proportional to 113,521.15, 156,659.23 and 65,802.18

Step by Step Solution

1. Step 1: Write the proportion equation
   113,521.15 : 156,659.23 = 65,802.18 : x
2. Step 2: Convert to fraction form
   113,521.15/156,659.23 = 65,802.18/x
3. Step 3: Cross multiply
   113,521.15x = 156,659.23 × 65,802.18
4. Step 4: Simplify right side
   113,521.15x = 10,308,518,686.62
5. Step 5: Solve for x
   x = 10,308,518,686.62/113,521.15
6. Step 6: Final answer
   x = 90,807.03