Finding the Fourth Proportional to 14,076.64, 19,425.78 and 7,789

Step by Step Solution

1. Step 1: Write the proportion equation
   14,076.64 : 19,425.78 = 7,789 : x
2. Step 2: Convert to fraction form
   14,076.64/19,425.78 = 7,789/x
3. Step 3: Cross multiply
   14,076.64x = 19,425.78 × 7,789
4. Step 4: Simplify right side
   14,076.64x = 151,307,400.42
5. Step 5: Solve for x
   x = 151,307,400.42/14,076.64
6. Step 6: Final answer
   x = 10,748.83