Finding the Fourth Proportional to 9,127.49, 12,596.90 and 5,542.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.49 : 12,596.90 = 5,542.43 : x
2. Step 2: Convert to fraction form
   9,127.49/12,596.90 = 5,542.43/x
3. Step 3: Cross multiply
   9,127.49x = 12,596.90 × 5,542.43
4. Step 4: Simplify right side
   9,127.49x = 69,817,345.77
5. Step 5: Solve for x
   x = 69,817,345.77/9,127.49
6. Step 6: Final answer
   x = 7,649.13