Finding the Fourth Proportional to 115,701.99, 159,672.38 and 65,404.23

Step by Step Solution

1. Step 1: Write the proportion equation
   115,701.99 : 159,672.38 = 65,404.23 : x
2. Step 2: Convert to fraction form
   115,701.99/159,672.38 = 65,404.23/x
3. Step 3: Cross multiply
   115,701.99x = 159,672.38 × 65,404.23
4. Step 4: Simplify right side
   115,701.99x = 10,443,248,739.15
5. Step 5: Solve for x
   x = 10,443,248,739.15/115,701.99
6. Step 6: Final answer
   x = 90,259.89