Finding the Fourth Proportional to 42,654.18, 63,990.63 and 13,074.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,654.18 : 63,990.63 = 13,074.24 : x
2. Step 2: Convert to fraction form
   42,654.18/63,990.63 = 13,074.24/x
3. Step 3: Cross multiply
   42,654.18x = 63,990.63 × 13,074.24
4. Step 4: Simplify right side
   42,654.18x = 836,628,854.37
5. Step 5: Solve for x
   x = 836,628,854.37/42,654.18
6. Step 6: Final answer
   x = 19,614.23