Finding the Fourth Proportional to 10,870.88, 15,001.81 and 5,902.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,870.88 : 15,001.81 = 5,902.88 : x
2. Step 2: Convert to fraction form
   10,870.88/15,001.81 = 5,902.88/x
3. Step 3: Cross multiply
   10,870.88x = 15,001.81 × 5,902.88
4. Step 4: Simplify right side
   10,870.88x = 88,553,794.45
5. Step 5: Solve for x
   x = 88,553,794.45/10,870.88
6. Step 6: Final answer
   x = 8,145.97