Finding the Fourth Proportional to 439,811.91, 659,719.49 and 187,056.27

Step by Step Solution

1. Step 1: Write the proportion equation
   439,811.91 : 659,719.49 = 187,056.27 : x
2. Step 2: Convert to fraction form
   439,811.91/659,719.49 = 187,056.27/x
3. Step 3: Cross multiply
   439,811.91x = 659,719.49 × 187,056.27
4. Step 4: Simplify right side
   439,811.91x = 123,404,666,110.42
5. Step 5: Solve for x
   x = 123,404,666,110.42/439,811.91
6. Step 6: Final answer
   x = 280,585.09