Finding the Fourth Proportional to 10,289.50, 14,184.93 and 7,312.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,289.50 : 14,184.93 = 7,312.15 : x
2. Step 2: Convert to fraction form
   10,289.50/14,184.93 = 7,312.15/x
3. Step 3: Cross multiply
   10,289.50x = 14,184.93 × 7,312.15
4. Step 4: Simplify right side
   10,289.50x = 103,722,335.90
5. Step 5: Solve for x
   x = 103,722,335.90/10,289.50
6. Step 6: Final answer
   x = 10,080.41