Finding the Fourth Proportional to 113,521.83, 156,660.15 and 65,802.87

Step by Step Solution

1. Step 1: Write the proportion equation
   113,521.83 : 156,660.15 = 65,802.87 : x
2. Step 2: Convert to fraction form
   113,521.83/156,660.15 = 65,802.87/x
3. Step 3: Cross multiply
   113,521.83x = 156,660.15 × 65,802.87
4. Step 4: Simplify right side
   113,521.83x = 10,308,687,484.63
5. Step 5: Solve for x
   x = 10,308,687,484.63/113,521.83
6. Step 6: Final answer
   x = 90,807.97