Finding the Fourth Proportional to 78,869.60, 108,839.24 and 48,642.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,869.60 : 108,839.24 = 48,642.83 : x
2. Step 2: Convert to fraction form
   78,869.60/108,839.24 = 48,642.83/x
3. Step 3: Cross multiply
   78,869.60x = 108,839.24 × 48,642.83
4. Step 4: Simplify right side
   78,869.60x = 5,294,248,725.41
5. Step 5: Solve for x
   x = 5,294,248,725.41/78,869.60
6. Step 6: Final answer
   x = 67,126.61