Finding the Fourth Proportional to 12,569.31, 18,861.91 and 7,026.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,569.31 : 18,861.91 = 7,026.29 : x
2. Step 2: Convert to fraction form
   12,569.31/18,861.91 = 7,026.29/x
3. Step 3: Cross multiply
   12,569.31x = 18,861.91 × 7,026.29
4. Step 4: Simplify right side
   12,569.31x = 132,529,314.33
5. Step 5: Solve for x
   x = 132,529,314.33/12,569.31
6. Step 6: Final answer
   x = 10,543.88