Finding the Fourth Proportional to 65,088.50, 89,822.13 and 35,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,088.50 : 89,822.13 = 35,280.50 : x
2. Step 2: Convert to fraction form
   65,088.50/89,822.13 = 35,280.50/x
3. Step 3: Cross multiply
   65,088.50x = 89,822.13 × 35,280.50
4. Step 4: Simplify right side
   65,088.50x = 3,168,969,657.47
5. Step 5: Solve for x
   x = 3,168,969,657.47/65,088.50
6. Step 6: Final answer
   x = 48,687.09