Finding the Fourth Proportional to 15,978.86, 23,956.94 and 6,109.82

Step by Step Solution

1. Step 1: Write the proportion equation
   15,978.86 : 23,956.94 = 6,109.82 : x
2. Step 2: Convert to fraction form
   15,978.86/23,956.94 = 6,109.82/x
3. Step 3: Cross multiply
   15,978.86x = 23,956.94 × 6,109.82
4. Step 4: Simplify right side
   15,978.86x = 146,372,591.15
5. Step 5: Solve for x
   x = 146,372,591.15/15,978.86
6. Step 6: Final answer
   x = 9,160.39