Finding the Fourth Proportional to 10,667.30, 14,721.04 and 7,088.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.30 : 14,721.04 = 7,088.31 : x
2. Step 2: Convert to fraction form
   10,667.30/14,721.04 = 7,088.31/x
3. Step 3: Cross multiply
   10,667.30x = 14,721.04 × 7,088.31
4. Step 4: Simplify right side
   10,667.30x = 104,347,303.90
5. Step 5: Solve for x
   x = 104,347,303.90/10,667.30
6. Step 6: Final answer
   x = 9,781.98