Finding the Fourth Proportional to 65,200.29, 89,978.62 and 36,521.19

Step by Step Solution

1. Step 1: Write the proportion equation
   65,200.29 : 89,978.62 = 36,521.19 : x
2. Step 2: Convert to fraction form
   65,200.29/89,978.62 = 36,521.19/x
3. Step 3: Cross multiply
   65,200.29x = 89,978.62 × 36,521.19
4. Step 4: Simplify right side
   65,200.29x = 3,286,126,276.96
5. Step 5: Solve for x
   x = 3,286,126,276.96/65,200.29
6. Step 6: Final answer
   x = 50,400.49