Finding the Fourth Proportional to 258,978.13, 357,566.00 and 162,221.94

Step by Step Solution

1. Step 1: Write the proportion equation
   258,978.13 : 357,566.00 = 162,221.94 : x
2. Step 2: Convert to fraction form
   258,978.13/357,566.00 = 162,221.94/x
3. Step 3: Cross multiply
   258,978.13x = 357,566.00 × 162,221.94
4. Step 4: Simplify right side
   258,978.13x = 58,005,049,386.93
5. Step 5: Solve for x
   x = 58,005,049,386.93/258,978.13
6. Step 6: Final answer
   x = 223,976.63