Finding the Fourth Proportional to 282,061.52, 420,160.69 and 266,782.28

Step by Step Solution

1. Step 1: Write the proportion equation
   282,061.52 : 420,160.69 = 266,782.28 : x
2. Step 2: Convert to fraction form
   282,061.52/420,160.69 = 266,782.28/x
3. Step 3: Cross multiply
   282,061.52x = 420,160.69 × 266,782.28
4. Step 4: Simplify right side
   282,061.52x = 112,091,426,844.57
5. Step 5: Solve for x
   x = 112,091,426,844.57/282,061.52
6. Step 6: Final answer
   x = 397,400.63