Finding the Fourth Proportional to 60,200.78, 90,293.98 and 15,830.99

Step by Step Solution

1. Step 1: Write the proportion equation
   60,200.78 : 90,293.98 = 15,830.99 : x
2. Step 2: Convert to fraction form
   60,200.78/90,293.98 = 15,830.99/x
3. Step 3: Cross multiply
   60,200.78x = 90,293.98 × 15,830.99
4. Step 4: Simplify right side
   60,200.78x = 1,429,443,016.20
5. Step 5: Solve for x
   x = 1,429,443,016.20/60,200.78
6. Step 6: Final answer
   x = 23,744.59