Finding the Fourth Proportional to 12,077.64, 16,664.88 and 7,774.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,077.64 : 16,664.88 = 7,774.52 : x
2. Step 2: Convert to fraction form
   12,077.64/16,664.88 = 7,774.52/x
3. Step 3: Cross multiply
   12,077.64x = 16,664.88 × 7,774.52
4. Step 4: Simplify right side
   12,077.64x = 129,561,442.86
5. Step 5: Solve for x
   x = 129,561,442.86/12,077.64
6. Step 6: Final answer
   x = 10,727.38