Finding the Fourth Proportional to 25,499.95, 38,256.42 and 14,978.87

Step by Step Solution

1. Step 1: Write the proportion equation
   25,499.95 : 38,256.42 = 14,978.87 : x
2. Step 2: Convert to fraction form
   25,499.95/38,256.42 = 14,978.87/x
3. Step 3: Cross multiply
   25,499.95x = 38,256.42 × 14,978.87
4. Step 4: Simplify right side
   25,499.95x = 573,037,837.85
5. Step 5: Solve for x
   x = 573,037,837.85/25,499.95
6. Step 6: Final answer
   x = 22,472.12