Finding the Fourth Proportional to 30,654.48, 42,303.15 and 17,916.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,654.48 : 42,303.15 = 17,916.42 : x
2. Step 2: Convert to fraction form
   30,654.48/42,303.15 = 17,916.42/x
3. Step 3: Cross multiply
   30,654.48x = 42,303.15 × 17,916.42
4. Step 4: Simplify right side
   30,654.48x = 757,921,002.72
5. Step 5: Solve for x
   x = 757,921,002.72/30,654.48
6. Step 6: Final answer
   x = 24,724.64