Finding the Fourth Proportional to 14,079, 19,428.72 and 7,705.59

Step by Step Solution

1. Step 1: Write the proportion equation
   14,079 : 19,428.72 = 7,705.59 : x
2. Step 2: Convert to fraction form
   14,079/19,428.72 = 7,705.59/x
3. Step 3: Cross multiply
   14,079x = 19,428.72 × 7,705.59
4. Step 4: Simplify right side
   14,079x = 149,709,750.54
5. Step 5: Solve for x
   x = 149,709,750.54/14,079
6. Step 6: Final answer
   x = 10,633.55