Finding the Fourth Proportional to 12,077.86, 18,120.72 and 5,838.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,077.86 : 18,120.72 = 5,838.58 : x
2. Step 2: Convert to fraction form
   12,077.86/18,120.72 = 5,838.58/x
3. Step 3: Cross multiply
   12,077.86x = 18,120.72 × 5,838.58
4. Step 4: Simplify right side
   12,077.86x = 105,799,273.38
5. Step 5: Solve for x
   x = 105,799,273.38/12,077.86
6. Step 6: Final answer
   x = 8,759.77