Finding the Fourth Proportional to 88,067.63, 121,544.78 and 49,320.20

Step by Step Solution

1. Step 1: Write the proportion equation
   88,067.63 : 121,544.78 = 49,320.20 : x
2. Step 2: Convert to fraction form
   88,067.63/121,544.78 = 49,320.20/x
3. Step 3: Cross multiply
   88,067.63x = 121,544.78 × 49,320.20
4. Step 4: Simplify right side
   88,067.63x = 5,994,612,004.23
5. Step 5: Solve for x
   x = 5,994,612,004.23/88,067.63
6. Step 6: Final answer
   x = 68,068.28