Finding the Fourth Proportional to 80,191.81, 110,665 and 43,398.03

Step by Step Solution

1. Step 1: Write the proportion equation
   80,191.81 : 110,665 = 43,398.03 : x
2. Step 2: Convert to fraction form
   80,191.81/110,665 = 43,398.03/x
3. Step 3: Cross multiply
   80,191.81x = 110,665 × 43,398.03
4. Step 4: Simplify right side
   80,191.81x = 4,802,642,989.95
5. Step 5: Solve for x
   x = 4,802,642,989.95/80,191.81
6. Step 6: Final answer
   x = 59,889.44