Finding the Fourth Proportional to 115,016.52, 172,464.30 and 67,646.10

Step by Step Solution

1. Step 1: Write the proportion equation
   115,016.52 : 172,464.30 = 67,646.10 : x
2. Step 2: Convert to fraction form
   115,016.52/172,464.30 = 67,646.10/x
3. Step 3: Cross multiply
   115,016.52x = 172,464.30 × 67,646.10
4. Step 4: Simplify right side
   115,016.52x = 11,666,537,284.23
5. Step 5: Solve for x
   x = 11,666,537,284.23/115,016.52
6. Step 6: Final answer
   x = 101,433.58