Finding the Fourth Proportional to 77,961.83, 107,587.71 and 42,151.73

Step by Step Solution

1. Step 1: Write the proportion equation
   77,961.83 : 107,587.71 = 42,151.73 : x
2. Step 2: Convert to fraction form
   77,961.83/107,587.71 = 42,151.73/x
3. Step 3: Cross multiply
   77,961.83x = 107,587.71 × 42,151.73
4. Step 4: Simplify right side
   77,961.83x = 4,535,007,565.30
5. Step 5: Solve for x
   x = 4,535,007,565.30/77,961.83
6. Step 6: Final answer
   x = 58,169.59