Finding the Fourth Proportional to 271,920.42, 407,890.89 and 103,409.34

Step by Step Solution

1. Step 1: Write the proportion equation
   271,920.42 : 407,890.89 = 103,409.34 : x
2. Step 2: Convert to fraction form
   271,920.42/407,890.89 = 103,409.34/x
3. Step 3: Cross multiply
   271,920.42x = 407,890.89 × 103,409.34
4. Step 4: Simplify right side
   271,920.42x = 42,179,727,726.91
5. Step 5: Solve for x
   x = 42,179,727,726.91/271,920.42
6. Step 6: Final answer
   x = 155,117.91