Finding the Fourth Proportional to 51,017.98, 76,526.72 and 13,067.17

Step by Step Solution

1. Step 1: Write the proportion equation
   51,017.98 : 76,526.72 = 13,067.17 : x
2. Step 2: Convert to fraction form
   51,017.98/76,526.72 = 13,067.17/x
3. Step 3: Cross multiply
   51,017.98x = 76,526.72 × 13,067.17
4. Step 4: Simplify right side
   51,017.98x = 999,987,211.81
5. Step 5: Solve for x
   x = 999,987,211.81/51,017.98
6. Step 6: Final answer
   x = 19,600.68