Finding the Fourth Proportional to 10,123.12, 15,184.78 and 3,549.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.12 : 15,184.78 = 3,549.47 : x
2. Step 2: Convert to fraction form
   10,123.12/15,184.78 = 3,549.47/x
3. Step 3: Cross multiply
   10,123.12x = 15,184.78 × 3,549.47
4. Step 4: Simplify right side
   10,123.12x = 53,897,856.23
5. Step 5: Solve for x
   x = 53,897,856.23/10,123.12
6. Step 6: Final answer
   x = 5,324.23