Finding the Fourth Proportional to 72,892.64, 109,353.78 and 27,910.80

Step by Step Solution

1. Step 1: Write the proportion equation
   72,892.64 : 109,353.78 = 27,910.80 : x
2. Step 2: Convert to fraction form
   72,892.64/109,353.78 = 27,910.80/x
3. Step 3: Cross multiply
   72,892.64x = 109,353.78 × 27,910.80
4. Step 4: Simplify right side
   72,892.64x = 3,052,151,482.82
5. Step 5: Solve for x
   x = 3,052,151,482.82/72,892.64
6. Step 6: Final answer
   x = 41,871.87