Finding the Fourth Proportional to 9,111.48, 13,667.32 and 2,871.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.48 : 13,667.32 = 2,871.36 : x
2. Step 2: Convert to fraction form
   9,111.48/13,667.32 = 2,871.36/x
3. Step 3: Cross multiply
   9,111.48x = 13,667.32 × 2,871.36
4. Step 4: Simplify right side
   9,111.48x = 39,243,795.96
5. Step 5: Solve for x
   x = 39,243,795.96/9,111.48
6. Step 6: Final answer
   x = 4,307.07