Finding the Fourth Proportional to 42,243.30, 63,189.90 and 38,394.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,243.30 : 63,189.90 = 38,394.18 : x
2. Step 2: Convert to fraction form
   42,243.30/63,189.90 = 38,394.18/x
3. Step 3: Cross multiply
   42,243.30x = 63,189.90 × 38,394.18
4. Step 4: Simplify right side
   42,243.30x = 2,426,124,394.78
5. Step 5: Solve for x
   x = 2,426,124,394.78/42,243.30
6. Step 6: Final answer
   x = 57,432.17