Finding the Fourth Proportional to 76,826.26, 115,255.05 and 43,561.18

Step by Step Solution

1. Step 1: Write the proportion equation
   76,826.26 : 115,255.05 = 43,561.18 : x
2. Step 2: Convert to fraction form
   76,826.26/115,255.05 = 43,561.18/x
3. Step 3: Cross multiply
   76,826.26x = 115,255.05 × 43,561.18
4. Step 4: Simplify right side
   76,826.26x = 5,020,645,978.96
5. Step 5: Solve for x
   x = 5,020,645,978.96/76,826.26
6. Step 6: Final answer
   x = 65,350.65