Finding the Fourth Proportional to 115,017.94, 158,688.12 and 64,707.22

Step by Step Solution

1. Step 1: Write the proportion equation
   115,017.94 : 158,688.12 = 64,707.22 : x
2. Step 2: Convert to fraction form
   115,017.94/158,688.12 = 64,707.22/x
3. Step 3: Cross multiply
   115,017.94x = 158,688.12 × 64,707.22
4. Step 4: Simplify right side
   115,017.94x = 10,268,267,092.23
5. Step 5: Solve for x
   x = 10,268,267,092.23/115,017.94
6. Step 6: Final answer
   x = 89,275.35