Finding the Fourth Proportional to 258,019.43, 386,826.34 and 163,049.86

Step by Step Solution

1. Step 1: Write the proportion equation
   258,019.43 : 386,826.34 = 163,049.86 : x
2. Step 2: Convert to fraction form
   258,019.43/386,826.34 = 163,049.86/x
3. Step 3: Cross multiply
   258,019.43x = 386,826.34 × 163,049.86
4. Step 4: Simplify right side
   258,019.43x = 63,071,980,733.13
5. Step 5: Solve for x
   x = 63,071,980,733.13/258,019.43
6. Step 6: Final answer
   x = 244,446.64