Finding the Fourth Proportional to 10,098.93, 15,139.05 and 5,157.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,098.93 : 15,139.05 = 5,157.68 : x
2. Step 2: Convert to fraction form
   10,098.93/15,139.05 = 5,157.68/x
3. Step 3: Cross multiply
   10,098.93x = 15,139.05 × 5,157.68
4. Step 4: Simplify right side
   10,098.93x = 78,082,309.38
5. Step 5: Solve for x
   x = 78,082,309.38/10,098.93
6. Step 6: Final answer
   x = 7,731.74