Finding the Fourth Proportional to 78,954.76, 108,987.78 and 48,745

Step by Step Solution

1. Step 1: Write the proportion equation
   78,954.76 : 108,987.78 = 48,745 : x
2. Step 2: Convert to fraction form
   78,954.76/108,987.78 = 48,745/x
3. Step 3: Cross multiply
   78,954.76x = 108,987.78 × 48,745
4. Step 4: Simplify right side
   78,954.76x = 5,312,609,336.10
5. Step 5: Solve for x
   x = 5,312,609,336.10/78,954.76
6. Step 6: Final answer
   x = 67,286.75