Finding the Fourth Proportional to 19,865.92, 29,798.42 and 10,002.55

Step by Step Solution

1. Step 1: Write the proportion equation
   19,865.92 : 29,798.42 = 10,002.55 : x
2. Step 2: Convert to fraction form
   19,865.92/29,798.42 = 10,002.55/x
3. Step 3: Cross multiply
   19,865.92x = 29,798.42 × 10,002.55
4. Step 4: Simplify right side
   19,865.92x = 298,060,061.46
5. Step 5: Solve for x
   x = 298,060,061.46/19,865.92
6. Step 6: Final answer
   x = 15,003.59