Finding the Fourth Proportional to 10,778.50, 14,870.20 and 7,952.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,778.50 : 14,870.20 = 7,952.61 : x
2. Step 2: Convert to fraction form
   10,778.50/14,870.20 = 7,952.61/x
3. Step 3: Cross multiply
   10,778.50x = 14,870.20 × 7,952.61
4. Step 4: Simplify right side
   10,778.50x = 118,256,952.01
5. Step 5: Solve for x
   x = 118,256,952.01/10,778.50
6. Step 6: Final answer
   x = 10,971.56