Finding the Fourth Proportional to 78,696.63, 108,601.37 and 42,886.65

Step by Step Solution

1. Step 1: Write the proportion equation
   78,696.63 : 108,601.37 = 42,886.65 : x
2. Step 2: Convert to fraction form
   78,696.63/108,601.37 = 42,886.65/x
3. Step 3: Cross multiply
   78,696.63x = 108,601.37 × 42,886.65
4. Step 4: Simplify right side
   78,696.63x = 4,657,548,730.28
5. Step 5: Solve for x
   x = 4,657,548,730.28/78,696.63
6. Step 6: Final answer
   x = 59,183.59