Finding the Fourth Proportional to 10,865.52, 14,994.63 and 7,091.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,865.52 : 14,994.63 = 7,091.10 : x
2. Step 2: Convert to fraction form
   10,865.52/14,994.63 = 7,091.10/x
3. Step 3: Cross multiply
   10,865.52x = 14,994.63 × 7,091.10
4. Step 4: Simplify right side
   10,865.52x = 106,328,420.79
5. Step 5: Solve for x
   x = 106,328,420.79/10,865.52
6. Step 6: Final answer
   x = 9,785.86