Finding the Fourth Proportional to 260,648.31, 359,587.76 and 158,591.96

Step by Step Solution

1. Step 1: Write the proportion equation
   260,648.31 : 359,587.76 = 158,591.96 : x
2. Step 2: Convert to fraction form
   260,648.31/359,587.76 = 158,591.96/x
3. Step 3: Cross multiply
   260,648.31x = 359,587.76 × 158,591.96
4. Step 4: Simplify right side
   260,648.31x = 57,027,725,059.51
5. Step 5: Solve for x
   x = 57,027,725,059.51/260,648.31
6. Step 6: Final answer
   x = 218,791.85