Finding the Fourth Proportional to 10,147.16, 15,223.80 and 3,907.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,147.16 : 15,223.80 = 3,907.76 : x
2. Step 2: Convert to fraction form
   10,147.16/15,223.80 = 3,907.76/x
3. Step 3: Cross multiply
   10,147.16x = 15,223.80 × 3,907.76
4. Step 4: Simplify right side
   10,147.16x = 59,490,956.69
5. Step 5: Solve for x
   x = 59,490,956.69/10,147.16
6. Step 6: Final answer
   x = 5,862.82