Finding the Fourth Proportional to 42,456.61, 63,681 and 14,373.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,456.61 : 63,681 = 14,373.46 : x
2. Step 2: Convert to fraction form
   42,456.61/63,681 = 14,373.46/x
3. Step 3: Cross multiply
   42,456.61x = 63,681 × 14,373.46
4. Step 4: Simplify right side
   42,456.61x = 915,315,987.86
5. Step 5: Solve for x
   x = 915,315,987.86/42,456.61
6. Step 6: Final answer
   x = 21,558.86