Finding the Fourth Proportional to 78,601.21, 108,471.94 and 42,791.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,601.21 : 108,471.94 = 42,791.83 : x
2. Step 2: Convert to fraction form
   78,601.21/108,471.94 = 42,791.83/x
3. Step 3: Cross multiply
   78,601.21x = 108,471.94 × 42,791.83
4. Step 4: Simplify right side
   78,601.21x = 4,641,712,438.09
5. Step 5: Solve for x
   x = 4,641,712,438.09/78,601.21
6. Step 6: Final answer
   x = 59,053.96