Finding the Fourth Proportional to 78,900.62, 108,883.72 and 43,091.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,900.62 : 108,883.72 = 43,091.68 : x
2. Step 2: Convert to fraction form
   78,900.62/108,883.72 = 43,091.68/x
3. Step 3: Cross multiply
   78,900.62x = 108,883.72 × 43,091.68
4. Step 4: Simplify right side
   78,900.62x = 4,691,982,419.45
5. Step 5: Solve for x
   x = 4,691,982,419.45/78,900.62
6. Step 6: Final answer
   x = 59,466.99