Finding the Fourth Proportional to 25,059.98, 37,594.20 and 8,421.60

Step by Step Solution

1. Step 1: Write the proportion equation
   25,059.98 : 37,594.20 = 8,421.60 : x
2. Step 2: Convert to fraction form
   25,059.98/37,594.20 = 8,421.60/x
3. Step 3: Cross multiply
   25,059.98x = 37,594.20 × 8,421.60
4. Step 4: Simplify right side
   25,059.98x = 316,603,314.72
5. Step 5: Solve for x
   x = 316,603,314.72/25,059.98
6. Step 6: Final answer
   x = 12,633.82