Finding the Fourth Proportional to 544,085.47, 816,127.12 and 144,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   544,085.47 : 816,127.12 = 144,726.72 : x
2. Step 2: Convert to fraction form
   544,085.47/816,127.12 = 144,726.72/x
3. Step 3: Cross multiply
   544,085.47x = 816,127.12 × 144,726.72
4. Step 4: Simplify right side
   544,085.47x = 118,115,401,180.65
5. Step 5: Solve for x
   x = 118,115,401,180.65/544,085.47
6. Step 6: Final answer
   x = 217,089.79