Finding the Fourth Proportional to 73,987.92, 111,018.26 and 45,900.72

Step by Step Solution

1. Step 1: Write the proportion equation
   73,987.92 : 111,018.26 = 45,900.72 : x
2. Step 2: Convert to fraction form
   73,987.92/111,018.26 = 45,900.72/x
3. Step 3: Cross multiply
   73,987.92x = 111,018.26 × 45,900.72
4. Step 4: Simplify right side
   73,987.92x = 5,095,818,067.15
5. Step 5: Solve for x
   x = 5,095,818,067.15/73,987.92
6. Step 6: Final answer
   x = 68,873.65