Finding the Fourth Proportional to 115,805.50, 159,811.59 and 62,813.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,805.50 : 159,811.59 = 62,813.50 : x
2. Step 2: Convert to fraction form
   115,805.50/159,811.59 = 62,813.50/x
3. Step 3: Cross multiply
   115,805.50x = 159,811.59 × 62,813.50
4. Step 4: Simplify right side
   115,805.50x = 10,038,325,308.47
5. Step 5: Solve for x
   x = 10,038,325,308.47/115,805.50
6. Step 6: Final answer
   x = 86,682.63