Finding the Fourth Proportional to 9,875.74, 14,811.42 and 2,854.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,875.74 : 14,811.42 = 2,854.22 : x
2. Step 2: Convert to fraction form
   9,875.74/14,811.42 = 2,854.22/x
3. Step 3: Cross multiply
   9,875.74x = 14,811.42 × 2,854.22
4. Step 4: Simplify right side
   9,875.74x = 42,275,047.07
5. Step 5: Solve for x
   x = 42,275,047.07/9,875.74
6. Step 6: Final answer
   x = 4,280.70