Finding the Fourth Proportional to 78,889.59, 108,863.55 and 43,072.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,889.59 : 108,863.55 = 43,072.68 : x
2. Step 2: Convert to fraction form
   78,889.59/108,863.55 = 43,072.68/x
3. Step 3: Cross multiply
   78,889.59x = 108,863.55 × 43,072.68
4. Step 4: Simplify right side
   78,889.59x = 4,689,044,852.81
5. Step 5: Solve for x
   x = 4,689,044,852.81/78,889.59
6. Step 6: Final answer
   x = 59,438.07