Finding the Fourth Proportional to 42,459.50, 63,718.50 and 14,757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,459.50 : 63,718.50 = 14,757.50 : x
2. Step 2: Convert to fraction form
   42,459.50/63,718.50 = 14,757.50/x
3. Step 3: Cross multiply
   42,459.50x = 63,718.50 × 14,757.50
4. Step 4: Simplify right side
   42,459.50x = 940,325,763.75
5. Step 5: Solve for x
   x = 940,325,763.75/42,459.50
6. Step 6: Final answer
   x = 22,146.42