Finding the Fourth Proportional to 78,651.84, 108,535.80 and 42,841.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,651.84 : 108,535.80 = 42,841.68 : x
2. Step 2: Convert to fraction form
   78,651.84/108,535.80 = 42,841.68/x
3. Step 3: Cross multiply
   78,651.84x = 108,535.80 × 42,841.68
4. Step 4: Simplify right side
   78,651.84x = 4,649,856,012.14
5. Step 5: Solve for x
   x = 4,649,856,012.14/78,651.84
6. Step 6: Final answer
   x = 59,119.48