Finding the Fourth Proportional to 12,810.95, 17,674.01 and 7,773.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,810.95 : 17,674.01 = 7,773.32 : x
2. Step 2: Convert to fraction form
   12,810.95/17,674.01 = 7,773.32/x
3. Step 3: Cross multiply
   12,810.95x = 17,674.01 × 7,773.32
4. Step 4: Simplify right side
   12,810.95x = 137,385,735.41
5. Step 5: Solve for x
   x = 137,385,735.41/12,810.95
6. Step 6: Final answer
   x = 10,724.09