Finding the Fourth Proportional to 72,867.62, 109,272.77 and 35,416.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,867.62 : 109,272.77 = 35,416.72 : x
2. Step 2: Convert to fraction form
   72,867.62/109,272.77 = 35,416.72/x
3. Step 3: Cross multiply
   72,867.62x = 109,272.77 × 35,416.72
4. Step 4: Simplify right side
   72,867.62x = 3,870,083,098.71
5. Step 5: Solve for x
   x = 3,870,083,098.71/72,867.62
6. Step 6: Final answer
   x = 53,111.15