Finding the Fourth Proportional to 78,869.97, 118,116.35 and 45,488.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,869.97 : 118,116.35 = 45,488.83 : x
2. Step 2: Convert to fraction form
   78,869.97/118,116.35 = 45,488.83/x
3. Step 3: Cross multiply
   78,869.97x = 118,116.35 × 45,488.83
4. Step 4: Simplify right side
   78,869.97x = 5,372,974,565.37
5. Step 5: Solve for x
   x = 5,372,974,565.37/78,869.97
6. Step 6: Final answer
   x = 68,124.47