Finding the Fourth Proportional to 72,811.16, 109,224.18 and 27,870.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,811.16 : 109,224.18 = 27,870.28 : x
2. Step 2: Convert to fraction form
   72,811.16/109,224.18 = 27,870.28/x
3. Step 3: Cross multiply
   72,811.16x = 109,224.18 × 27,870.28
4. Step 4: Simplify right side
   72,811.16x = 3,044,108,479.37
5. Step 5: Solve for x
   x = 3,044,108,479.37/72,811.16
6. Step 6: Final answer
   x = 41,808.27