Finding the Fourth Proportional to 78,696.86, 108,598.50 and 42,886.11

Step by Step Solution

1. Step 1: Write the proportion equation
   78,696.86 : 108,598.50 = 42,886.11 : x
2. Step 2: Convert to fraction form
   78,696.86/108,598.50 = 42,886.11/x
3. Step 3: Cross multiply
   78,696.86x = 108,598.50 × 42,886.11
4. Step 4: Simplify right side
   78,696.86x = 4,657,367,216.84
5. Step 5: Solve for x
   x = 4,657,367,216.84/78,696.86
6. Step 6: Final answer
   x = 59,181.11