Finding the Fourth Proportional to 78,601.98, 108,470.75 and 42,791.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,601.98 : 108,470.75 = 42,791.99 : x
2. Step 2: Convert to fraction form
   78,601.98/108,470.75 = 42,791.99/x
3. Step 3: Cross multiply
   78,601.98x = 108,470.75 × 42,791.99
4. Step 4: Simplify right side
   78,601.98x = 4,641,678,492.98
5. Step 5: Solve for x
   x = 4,641,678,492.98/78,601.98
6. Step 6: Final answer
   x = 59,052.95