Finding the Fourth Proportional to 271,978.96, 407,871.89 and 79,799.75

Step by Step Solution

1. Step 1: Write the proportion equation
   271,978.96 : 407,871.89 = 79,799.75 : x
2. Step 2: Convert to fraction form
   271,978.96/407,871.89 = 79,799.75/x
3. Step 3: Cross multiply
   271,978.96x = 407,871.89 × 79,799.75
4. Step 4: Simplify right side
   271,978.96x = 32,548,074,854.03
5. Step 5: Solve for x
   x = 32,548,074,854.03/271,978.96
6. Step 6: Final answer
   x = 119,671.30