Finding the Fourth Proportional to 10,106.12, 15,139.02 and 4,896.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,106.12 : 15,139.02 = 4,896.20 : x
2. Step 2: Convert to fraction form
   10,106.12/15,139.02 = 4,896.20/x
3. Step 3: Cross multiply
   10,106.12x = 15,139.02 × 4,896.20
4. Step 4: Simplify right side
   10,106.12x = 74,123,669.72
5. Step 5: Solve for x
   x = 74,123,669.72/10,106.12
6. Step 6: Final answer
   x = 7,334.53