Finding the Fourth Proportional to 42,642.86, 63,962.46 and 14,565.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,642.86 : 63,962.46 = 14,565.42 : x
2. Step 2: Convert to fraction form
   42,642.86/63,962.46 = 14,565.42/x
3. Step 3: Cross multiply
   42,642.86x = 63,962.46 × 14,565.42
4. Step 4: Simplify right side
   42,642.86x = 931,640,094.13
5. Step 5: Solve for x
   x = 931,640,094.13/42,642.86
6. Step 6: Final answer
   x = 21,847.51