Finding the Fourth Proportional to 115,879.50, 159,913.72 and 62,887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,879.50 : 159,913.72 = 62,887.50 : x
2. Step 2: Convert to fraction form
   115,879.50/159,913.72 = 62,887.50/x
3. Step 3: Cross multiply
   115,879.50x = 159,913.72 × 62,887.50
4. Step 4: Simplify right side
   115,879.50x = 10,056,574,066.50
5. Step 5: Solve for x
   x = 10,056,574,066.50/115,879.50
6. Step 6: Final answer
   x = 86,784.76