Finding the Fourth Proportional to 42,406.48, 63,611.52 and 14,327.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,406.48 : 63,611.52 = 14,327.20 : x
2. Step 2: Convert to fraction form
   42,406.48/63,611.52 = 14,327.20/x
3. Step 3: Cross multiply
   42,406.48x = 63,611.52 × 14,327.20
4. Step 4: Simplify right side
   42,406.48x = 911,374,969.34
5. Step 5: Solve for x
   x = 911,374,969.34/42,406.48
6. Step 6: Final answer
   x = 21,491.41