Finding the Fourth Proportional to 10,123.62, 15,185.54 and 3,549.97

Step by Step Solution

1. Step 1: Write the proportion equation
   10,123.62 : 15,185.54 = 3,549.97 : x
2. Step 2: Convert to fraction form
   10,123.62/15,185.54 = 3,549.97/x
3. Step 3: Cross multiply
   10,123.62x = 15,185.54 × 3,549.97
4. Step 4: Simplify right side
   10,123.62x = 53,908,117.76
5. Step 5: Solve for x
   x = 53,908,117.76/10,123.62
6. Step 6: Final answer
   x = 5,324.98