Finding the Fourth Proportional to 30,488.79, 42,076.61 and 17,061.29

Step by Step Solution

1. Step 1: Write the proportion equation
   30,488.79 : 42,076.61 = 17,061.29 : x
2. Step 2: Convert to fraction form
   30,488.79/42,076.61 = 17,061.29/x
3. Step 3: Cross multiply
   30,488.79x = 42,076.61 × 17,061.29
4. Step 4: Simplify right side
   30,488.79x = 717,881,245.43
5. Step 5: Solve for x
   x = 717,881,245.43/30,488.79
6. Step 6: Final answer
   x = 23,545.74