Finding the Fourth Proportional to 30,900.30, 42,642.15 and 17,474.19

Step by Step Solution

1. Step 1: Write the proportion equation
   30,900.30 : 42,642.15 = 17,474.19 : x
2. Step 2: Convert to fraction form
   30,900.30/42,642.15 = 17,474.19/x
3. Step 3: Cross multiply
   30,900.30x = 42,642.15 × 17,474.19
4. Step 4: Simplify right side
   30,900.30x = 745,136,730.53
5. Step 5: Solve for x
   x = 745,136,730.53/30,900.30
6. Step 6: Final answer
   x = 24,114.23