Finding the Fourth Proportional to 80,810.93, 121,174.89 and 43,402.48

Step by Step Solution

1. Step 1: Write the proportion equation
   80,810.93 : 121,174.89 = 43,402.48 : x
2. Step 2: Convert to fraction form
   80,810.93/121,174.89 = 43,402.48/x
3. Step 3: Cross multiply
   80,810.93x = 121,174.89 × 43,402.48
4. Step 4: Simplify right side
   80,810.93x = 5,259,290,274.03
5. Step 5: Solve for x
   x = 5,259,290,274.03/80,810.93
6. Step 6: Final answer
   x = 65,081.42