Finding the Fourth Proportional to 62,443.28, 86,173 and 34,150.80

Step by Step Solution

1. Step 1: Write the proportion equation
   62,443.28 : 86,173 = 34,150.80 : x
2. Step 2: Convert to fraction form
   62,443.28/86,173 = 34,150.80/x
3. Step 3: Cross multiply
   62,443.28x = 86,173 × 34,150.80
4. Step 4: Simplify right side
   62,443.28x = 2,942,876,888.40
5. Step 5: Solve for x
   x = 2,942,876,888.40/62,443.28
6. Step 6: Final answer
   x = 47,128.80