Finding the Fourth Proportional to 30,862.57, 42,585.33 and 17,430.76

Step by Step Solution

1. Step 1: Write the proportion equation
   30,862.57 : 42,585.33 = 17,430.76 : x
2. Step 2: Convert to fraction form
   30,862.57/42,585.33 = 17,430.76/x
3. Step 3: Cross multiply
   30,862.57x = 42,585.33 × 17,430.76
4. Step 4: Simplify right side
   30,862.57x = 742,294,666.75
5. Step 5: Solve for x
   x = 742,294,666.75/30,862.57
6. Step 6: Final answer
   x = 24,051.62