Finding the Fourth Proportional to 39,705.86, 54,757.52 and 26,978.10

Step by Step Solution

1. Step 1: Write the proportion equation
   39,705.86 : 54,757.52 = 26,978.10 : x
2. Step 2: Convert to fraction form
   39,705.86/54,757.52 = 26,978.10/x
3. Step 3: Cross multiply
   39,705.86x = 54,757.52 × 26,978.10
4. Step 4: Simplify right side
   39,705.86x = 1,477,253,917.76
5. Step 5: Solve for x
   x = 1,477,253,917.76/39,705.86
6. Step 6: Final answer
   x = 37,204.93