Finding the Fourth Proportional to 21,565.42, 32,356.64 and 14,168.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,565.42 : 32,356.64 = 14,168.50 : x
2. Step 2: Convert to fraction form
   21,565.42/32,356.64 = 14,168.50/x
3. Step 3: Cross multiply
   21,565.42x = 32,356.64 × 14,168.50
4. Step 4: Simplify right side
   21,565.42x = 458,445,008.37
5. Step 5: Solve for x
   x = 458,445,008.37/21,565.42
6. Step 6: Final answer
   x = 21,258.34