Finding the Fourth Proportional to 42,327.56, 63,472.11 and 20,167.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,327.56 : 63,472.11 = 20,167.72 : x
2. Step 2: Convert to fraction form
   42,327.56/63,472.11 = 20,167.72/x
3. Step 3: Cross multiply
   42,327.56x = 63,472.11 × 20,167.72
4. Step 4: Simplify right side
   42,327.56x = 1,280,087,507.98
5. Step 5: Solve for x
   x = 1,280,087,507.98/42,327.56
6. Step 6: Final answer
   x = 30,242.41