Finding the Fourth Proportional to 21,648.76, 29,870.12 and 14,932.24

Step by Step Solution

1. Step 1: Write the proportion equation
   21,648.76 : 29,870.12 = 14,932.24 : x
2. Step 2: Convert to fraction form
   21,648.76/29,870.12 = 14,932.24/x
3. Step 3: Cross multiply
   21,648.76x = 29,870.12 × 14,932.24
4. Step 4: Simplify right side
   21,648.76x = 446,027,763.32
5. Step 5: Solve for x
   x = 446,027,763.32/21,648.76
6. Step 6: Final answer
   x = 20,602.93