Finding the Fourth Proportional to 280,404.91, 386,945.27 and 159,534.91

Step by Step Solution

1. Step 1: Write the proportion equation
   280,404.91 : 386,945.27 = 159,534.91 : x
2. Step 2: Convert to fraction form
   280,404.91/386,945.27 = 159,534.91/x
3. Step 3: Cross multiply
   280,404.91x = 386,945.27 × 159,534.91
4. Step 4: Simplify right side
   280,404.91x = 61,731,276,889.65
5. Step 5: Solve for x
   x = 61,731,276,889.65/280,404.91
6. Step 6: Final answer
   x = 220,150.49