Finding the Fourth Proportional to 77,877.54, 107,470.95 and 42,067.55

Step by Step Solution

1. Step 1: Write the proportion equation
   77,877.54 : 107,470.95 = 42,067.55 : x
2. Step 2: Convert to fraction form
   77,877.54/107,470.95 = 42,067.55/x
3. Step 3: Cross multiply
   77,877.54x = 107,470.95 × 42,067.55
4. Step 4: Simplify right side
   77,877.54x = 4,521,039,025.32
5. Step 5: Solve for x
   x = 4,521,039,025.32/77,877.54
6. Step 6: Final answer
   x = 58,053.18