Finding the Fourth Proportional to 79,452.42, 119,178.52 and 20,288.10

Step by Step Solution

1. Step 1: Write the proportion equation
   79,452.42 : 119,178.52 = 20,288.10 : x
2. Step 2: Convert to fraction form
   79,452.42/119,178.52 = 20,288.10/x
3. Step 3: Cross multiply
   79,452.42x = 119,178.52 × 20,288.10
4. Step 4: Simplify right side
   79,452.42x = 2,417,905,731.61
5. Step 5: Solve for x
   x = 2,417,905,731.61/79,452.42
6. Step 6: Final answer
   x = 30,432.12