Finding the Fourth Proportional to 112,789.29, 155,638.86 and 65,033.41

Step by Step Solution

1. Step 1: Write the proportion equation
   112,789.29 : 155,638.86 = 65,033.41 : x
2. Step 2: Convert to fraction form
   112,789.29/155,638.86 = 65,033.41/x
3. Step 3: Cross multiply
   112,789.29x = 155,638.86 × 65,033.41
4. Step 4: Simplify right side
   112,789.29x = 10,121,725,472.69
5. Step 5: Solve for x
   x = 10,121,725,472.69/112,789.29
6. Step 6: Final answer
   x = 89,740.13