Finding the Fourth Proportional to 115,271.27, 159,074.03 and 64,284.05

Step by Step Solution

1. Step 1: Write the proportion equation
   115,271.27 : 159,074.03 = 64,284.05 : x
2. Step 2: Convert to fraction form
   115,271.27/159,074.03 = 64,284.05/x
3. Step 3: Cross multiply
   115,271.27x = 159,074.03 × 64,284.05
4. Step 4: Simplify right side
   115,271.27x = 10,225,921,781.43
5. Step 5: Solve for x
   x = 10,225,921,781.43/115,271.27
6. Step 6: Final answer
   x = 88,711.80