Finding the Fourth Proportional to 42,470.96, 63,714.50 and 14,009.55

Step by Step Solution

1. Step 1: Write the proportion equation
   42,470.96 : 63,714.50 = 14,009.55 : x
2. Step 2: Convert to fraction form
   42,470.96/63,714.50 = 14,009.55/x
3. Step 3: Cross multiply
   42,470.96x = 63,714.50 × 14,009.55
4. Step 4: Simplify right side
   42,470.96x = 892,611,403.43
5. Step 5: Solve for x
   x = 892,611,403.43/42,470.96
6. Step 6: Final answer
   x = 21,016.98