Finding the Fourth Proportional to 10,142.96, 15,204.17 and 4,870.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,142.96 : 15,204.17 = 4,870.26 : x
2. Step 2: Convert to fraction form
   10,142.96/15,204.17 = 4,870.26/x
3. Step 3: Cross multiply
   10,142.96x = 15,204.17 × 4,870.26
4. Step 4: Simplify right side
   10,142.96x = 74,048,273.16
5. Step 5: Solve for x
   x = 74,048,273.16/10,142.96
6. Step 6: Final answer
   x = 7,300.46