Finding the Fourth Proportional to 78,938.77, 108,934.22 and 43,128.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,938.77 : 108,934.22 = 43,128.01 : x
2. Step 2: Convert to fraction form
   78,938.77/108,934.22 = 43,128.01/x
3. Step 3: Cross multiply
   78,938.77x = 108,934.22 × 43,128.01
4. Step 4: Simplify right side
   78,938.77x = 4,698,115,584.83
5. Step 5: Solve for x
   x = 4,698,115,584.83/78,938.77
6. Step 6: Final answer
   x = 59,515.95