Finding the Fourth Proportional to 219,046.40, 302,287.52 and 123,555.00

Step by Step Solution

1. Step 1: Write the proportion equation
   219,046.40 : 302,287.52 = 123,555.00 : x
2. Step 2: Convert to fraction form
   219,046.40/302,287.52 = 123,555.00/x
3. Step 3: Cross multiply
   219,046.40x = 302,287.52 × 123,555.00
4. Step 4: Simplify right side
   219,046.40x = 37,349,132,404.39
5. Step 5: Solve for x
   x = 37,349,132,404.39/219,046.40
6. Step 6: Final answer
   x = 170,507.86