Finding the Fourth Proportional to 216,066.53, 298,076.87 and 206,061

Step by Step Solution

1. Step 1: Write the proportion equation
   216,066.53 : 298,076.87 = 206,061 : x
2. Step 2: Convert to fraction form
   216,066.53/298,076.87 = 206,061/x
3. Step 3: Cross multiply
   216,066.53x = 298,076.87 × 206,061
4. Step 4: Simplify right side
   216,066.53x = 61,422,017,909.07
5. Step 5: Solve for x
   x = 61,422,017,909.07/216,066.53
6. Step 6: Final answer
   x = 284,273.64