Finding the Fourth Proportional to 30,916.37, 42,670.96 and 17,488.19

Step by Step Solution

1. Step 1: Write the proportion equation
   30,916.37 : 42,670.96 = 17,488.19 : x
2. Step 2: Convert to fraction form
   30,916.37/42,670.96 = 17,488.19/x
3. Step 3: Cross multiply
   30,916.37x = 42,670.96 × 17,488.19
4. Step 4: Simplify right side
   30,916.37x = 746,237,598.89
5. Step 5: Solve for x
   x = 746,237,598.89/30,916.37
6. Step 6: Final answer
   x = 24,137.30