Finding the Fourth Proportional to 62,399.80, 86,111.82 and 34,105.40

Step by Step Solution

1. Step 1: Write the proportion equation
   62,399.80 : 86,111.82 = 34,105.40 : x
2. Step 2: Convert to fraction form
   62,399.80/86,111.82 = 34,105.40/x
3. Step 3: Cross multiply
   62,399.80x = 86,111.82 × 34,105.40
4. Step 4: Simplify right side
   62,399.80x = 2,936,878,065.83
5. Step 5: Solve for x
   x = 2,936,878,065.83/62,399.80
6. Step 6: Final answer
   x = 47,065.50