Finding the Fourth Proportional to 12,039.30, 18,068.22 and 5,377.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,039.30 : 18,068.22 = 5,377.86 : x
2. Step 2: Convert to fraction form
   12,039.30/18,068.22 = 5,377.86/x
3. Step 3: Cross multiply
   12,039.30x = 18,068.22 × 5,377.86
4. Step 4: Simplify right side
   12,039.30x = 97,168,357.61
5. Step 5: Solve for x
   x = 97,168,357.61/12,039.30
6. Step 6: Final answer
   x = 8,070.93