Finding the Fourth Proportional to 5,902.32, 8,142.48 and 3,807.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,902.32 : 8,142.48 = 3,807.12 : x
2. Step 2: Convert to fraction form
   5,902.32/8,142.48 = 3,807.12/x
3. Step 3: Cross multiply
   5,902.32x = 8,142.48 × 3,807.12
4. Step 4: Simplify right side
   5,902.32x = 30,999,398.46
5. Step 5: Solve for x
   x = 30,999,398.46/5,902.32
6. Step 6: Final answer
   x = 5,252.07