Finding the Fourth Proportional to 78,697.59, 108,599.50 and 42,886.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,697.59 : 108,599.50 = 42,886.83 : x
2. Step 2: Convert to fraction form
   78,697.59/108,599.50 = 42,886.83/x
3. Step 3: Cross multiply
   78,697.59x = 108,599.50 × 42,886.83
4. Step 4: Simplify right side
   78,697.59x = 4,657,488,080.15
5. Step 5: Solve for x
   x = 4,657,488,080.15/78,697.59
6. Step 6: Final answer
   x = 59,182.09