Finding the Fourth Proportional to 7,251.36, 10,875.72 and 2,870.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,251.36 : 10,875.72 = 2,870.16 : x
2. Step 2: Convert to fraction form
   7,251.36/10,875.72 = 2,870.16/x
3. Step 3: Cross multiply
   7,251.36x = 10,875.72 × 2,870.16
4. Step 4: Simplify right side
   7,251.36x = 31,215,056.52
5. Step 5: Solve for x
   x = 31,215,056.52/7,251.36
6. Step 6: Final answer
   x = 4,304.72