Finding the Fourth Proportional to 60,575.58, 90,862.56 and 21,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,575.58 : 90,862.56 = 21,132.50 : x
2. Step 2: Convert to fraction form
   60,575.58/90,862.56 = 21,132.50/x
3. Step 3: Cross multiply
   60,575.58x = 90,862.56 × 21,132.50
4. Step 4: Simplify right side
   60,575.58x = 1,920,152,594.89
5. Step 5: Solve for x
   x = 1,920,152,594.89/60,575.58
6. Step 6: Final answer
   x = 31,698.46