Finding the Fourth Proportional to 271,867.98, 407,875.49 and 193,479.83

Step by Step Solution

1. Step 1: Write the proportion equation
   271,867.98 : 407,875.49 = 193,479.83 : x
2. Step 2: Convert to fraction form
   271,867.98/407,875.49 = 193,479.83/x
3. Step 3: Cross multiply
   271,867.98x = 407,875.49 × 193,479.83
4. Step 4: Simplify right side
   271,867.98x = 78,915,677,459.59
5. Step 5: Solve for x
   x = 78,915,677,459.59/271,867.98
6. Step 6: Final answer
   x = 290,272.06