Finding the Fourth Proportional to 62,989.59, 86,910.72 and 35,759.64

Step by Step Solution

1. Step 1: Write the proportion equation
   62,989.59 : 86,910.72 = 35,759.64 : x
2. Step 2: Convert to fraction form
   62,989.59/86,910.72 = 35,759.64/x
3. Step 3: Cross multiply
   62,989.59x = 86,910.72 × 35,759.64
4. Step 4: Simplify right side
   62,989.59x = 3,107,896,059.34
5. Step 5: Solve for x
   x = 3,107,896,059.34/62,989.59
6. Step 6: Final answer
   x = 49,339.84