Finding the Fourth Proportional to 72,986.15, 109,469.80 and 23,071.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,986.15 : 109,469.80 = 23,071.28 : x
2. Step 2: Convert to fraction form
   72,986.15/109,469.80 = 23,071.28/x
3. Step 3: Cross multiply
   72,986.15x = 109,469.80 × 23,071.28
4. Step 4: Simplify right side
   72,986.15x = 2,525,608,374.83
5. Step 5: Solve for x
   x = 2,525,608,374.83/72,986.15
6. Step 6: Final answer
   x = 34,603.94