Finding the Fourth Proportional to 89,580.18, 134,340.84 and 39,659.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,580.18 : 134,340.84 = 39,659.25 : x
2. Step 2: Convert to fraction form
   89,580.18/134,340.84 = 39,659.25/x
3. Step 3: Cross multiply
   89,580.18x = 134,340.84 × 39,659.25
4. Step 4: Simplify right side
   89,580.18x = 5,327,856,958.77
5. Step 5: Solve for x
   x = 5,327,856,958.77/89,580.18
6. Step 6: Final answer
   x = 59,475.85