Finding the Fourth Proportional to 9,891.46, 14,838.65 and 2,870.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,891.46 : 14,838.65 = 2,870.56 : x
2. Step 2: Convert to fraction form
   9,891.46/14,838.65 = 2,870.56/x
3. Step 3: Cross multiply
   9,891.46x = 14,838.65 × 2,870.56
4. Step 4: Simplify right side
   9,891.46x = 42,595,250.10
5. Step 5: Solve for x
   x = 42,595,250.10/9,891.46
6. Step 6: Final answer
   x = 4,306.26