Finding the Fourth Proportional to 30,916.47, 42,664.73 and 17,487.43

Step by Step Solution

1. Step 1: Write the proportion equation
   30,916.47 : 42,664.73 = 17,487.43 : x
2. Step 2: Convert to fraction form
   30,916.47/42,664.73 = 17,487.43/x
3. Step 3: Cross multiply
   30,916.47x = 42,664.73 × 17,487.43
4. Step 4: Simplify right side
   30,916.47x = 746,096,479.34
5. Step 5: Solve for x
   x = 746,096,479.34/30,916.47
6. Step 6: Final answer
   x = 24,132.65