Finding the Fourth Proportional to 78,676.05, 108,572.61 and 42,865.95

Step by Step Solution

1. Step 1: Write the proportion equation
   78,676.05 : 108,572.61 = 42,865.95 : x
2. Step 2: Convert to fraction form
   78,676.05/108,572.61 = 42,865.95/x
3. Step 3: Cross multiply
   78,676.05x = 108,572.61 × 42,865.95
4. Step 4: Simplify right side
   78,676.05x = 4,654,068,071.63
5. Step 5: Solve for x
   x = 4,654,068,071.63/78,676.05
6. Step 6: Final answer
   x = 59,154.83