Finding the Fourth Proportional to 40,320, 55,494.72 and 35,508.36

Step by Step Solution

1. Step 1: Write the proportion equation
   40,320 : 55,494.72 = 35,508.36 : x
2. Step 2: Convert to fraction form
   40,320/55,494.72 = 35,508.36/x
3. Step 3: Cross multiply
   40,320x = 55,494.72 × 35,508.36
4. Step 4: Simplify right side
   40,320x = 1,970,526,495.86
5. Step 5: Solve for x
   x = 1,970,526,495.86/40,320
6. Step 6: Final answer
   x = 48,872.18