Finding the Fourth Proportional to 9,111.24, 13,666.47 and 2,875.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.24 : 13,666.47 = 2,875.72 : x
2. Step 2: Convert to fraction form
   9,111.24/13,666.47 = 2,875.72/x
3. Step 3: Cross multiply
   9,111.24x = 13,666.47 × 2,875.72
4. Step 4: Simplify right side
   9,111.24x = 39,300,926.73
5. Step 5: Solve for x
   x = 39,300,926.73/9,111.24
6. Step 6: Final answer
   x = 4,313.46