Finding the Fourth Proportional to 10,572.54, 15,838.17 and 5,017.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,572.54 : 15,838.17 = 5,017.98 : x
2. Step 2: Convert to fraction form
   10,572.54/15,838.17 = 5,017.98/x
3. Step 3: Cross multiply
   10,572.54x = 15,838.17 × 5,017.98
4. Step 4: Simplify right side
   10,572.54x = 79,475,620.30
5. Step 5: Solve for x
   x = 79,475,620.30/10,572.54
6. Step 6: Final answer
   x = 7,517.17