Finding the Fourth Proportional to 9,123.06, 12,588.96 and 5,144.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.06 : 12,588.96 = 5,144.07 : x
2. Step 2: Convert to fraction form
   9,123.06/12,588.96 = 5,144.07/x
3. Step 3: Cross multiply
   9,123.06x = 12,588.96 × 5,144.07
4. Step 4: Simplify right side
   9,123.06x = 64,758,491.47
5. Step 5: Solve for x
   x = 64,758,491.47/9,123.06
6. Step 6: Final answer
   x = 7,098.33