Finding the Fourth Proportional to 10,840.72, 14,945.34 and 6,859.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,840.72 : 14,945.34 = 6,859.84 : x
2. Step 2: Convert to fraction form
   10,840.72/14,945.34 = 6,859.84/x
3. Step 3: Cross multiply
   10,840.72x = 14,945.34 × 6,859.84
4. Step 4: Simplify right side
   10,840.72x = 102,522,641.15
5. Step 5: Solve for x
   x = 102,522,641.15/10,840.72
6. Step 6: Final answer
   x = 9,457.18