Finding the Fourth Proportional to 342,870.24, 473,164.41 and 206,877.87

Step by Step Solution

1. Step 1: Write the proportion equation
   342,870.24 : 473,164.41 = 206,877.87 : x
2. Step 2: Convert to fraction form
   342,870.24/473,164.41 = 206,877.87/x
3. Step 3: Cross multiply
   342,870.24x = 473,164.41 × 206,877.87
4. Step 4: Simplify right side
   342,870.24x = 97,887,245,300.61
5. Step 5: Solve for x
   x = 97,887,245,300.61/342,870.24
6. Step 6: Final answer
   x = 285,493.56