Finding the Fourth Proportional to 10,076.10, 15,128.55 and 5,702.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,076.10 : 15,128.55 = 5,702.10 : x
2. Step 2: Convert to fraction form
   10,076.10/15,128.55 = 5,702.10/x
3. Step 3: Cross multiply
   10,076.10x = 15,128.55 × 5,702.10
4. Step 4: Simplify right side
   10,076.10x = 86,264,504.96
5. Step 5: Solve for x
   x = 86,264,504.96/10,076.10
6. Step 6: Final answer
   x = 8,561.30