Finding the Fourth Proportional to 89,868.69, 124,068.51 and 54,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,868.69 : 124,068.51 = 54,067.50 : x
2. Step 2: Convert to fraction form
   89,868.69/124,068.51 = 54,067.50/x
3. Step 3: Cross multiply
   89,868.69x = 124,068.51 × 54,067.50
4. Step 4: Simplify right side
   89,868.69x = 6,708,074,164.43
5. Step 5: Solve for x
   x = 6,708,074,164.43/89,868.69
6. Step 6: Final answer
   x = 74,643.06