Finding the Fourth Proportional to 58,479.72, 87,728.76 and 25,209.15

Step by Step Solution

1. Step 1: Write the proportion equation
   58,479.72 : 87,728.76 = 25,209.15 : x
2. Step 2: Convert to fraction form
   58,479.72/87,728.76 = 25,209.15/x
3. Step 3: Cross multiply
   58,479.72x = 87,728.76 × 25,209.15
4. Step 4: Simplify right side
   58,479.72x = 2,211,567,470.15
5. Step 5: Solve for x
   x = 2,211,567,470.15/58,479.72
6. Step 6: Final answer
   x = 37,817.68