Finding the Fourth Proportional to 439,476.16, 659,215.32 and 123,934.72

Step by Step Solution

1. Step 1: Write the proportion equation
   439,476.16 : 659,215.32 = 123,934.72 : x
2. Step 2: Convert to fraction form
   439,476.16/659,215.32 = 123,934.72/x
3. Step 3: Cross multiply
   439,476.16x = 659,215.32 × 123,934.72
4. Step 4: Simplify right side
   439,476.16x = 81,699,666,103.91
5. Step 5: Solve for x
   x = 81,699,666,103.91/439,476.16
6. Step 6: Final answer
   x = 185,902.38