Finding the Fourth Proportional to 78,484.53, 108,310.01 and 42,674.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,484.53 : 108,310.01 = 42,674.78 : x
2. Step 2: Convert to fraction form
   78,484.53/108,310.01 = 42,674.78/x
3. Step 3: Cross multiply
   78,484.53x = 108,310.01 × 42,674.78
4. Step 4: Simplify right side
   78,484.53x = 4,622,105,093.62
5. Step 5: Solve for x
   x = 4,622,105,093.62/78,484.53
6. Step 6: Final answer
   x = 58,891.93