Finding the Fourth Proportional to 12,702.31, 17,528.96 and 7,036.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,702.31 : 17,528.96 = 7,036.94 : x
2. Step 2: Convert to fraction form
   12,702.31/17,528.96 = 7,036.94/x
3. Step 3: Cross multiply
   12,702.31x = 17,528.96 × 7,036.94
4. Step 4: Simplify right side
   12,702.31x = 123,350,239.78
5. Step 5: Solve for x
   x = 123,350,239.78/12,702.31
6. Step 6: Final answer
   x = 9,710.85