Finding the Fourth Proportional to 42,156.48, 63,234.72 and 14,454.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,156.48 : 63,234.72 = 14,454.72 : x
2. Step 2: Convert to fraction form
   42,156.48/63,234.72 = 14,454.72/x
3. Step 3: Cross multiply
   42,156.48x = 63,234.72 × 14,454.72
4. Step 4: Simplify right side
   42,156.48x = 914,040,171.88
5. Step 5: Solve for x
   x = 914,040,171.88/42,156.48
6. Step 6: Final answer
   x = 21,682.08