Finding the Fourth Proportional to 8,459.31, 12,703.41 and 7,052.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,459.31 : 12,703.41 = 7,052.31 : x
2. Step 2: Convert to fraction form
   8,459.31/12,703.41 = 7,052.31/x
3. Step 3: Cross multiply
   8,459.31x = 12,703.41 × 7,052.31
4. Step 4: Simplify right side
   8,459.31x = 89,588,385.38
5. Step 5: Solve for x
   x = 89,588,385.38/8,459.31
6. Step 6: Final answer
   x = 10,590.51