Finding the Fourth Proportional to 440,086.72, 607,320.96 and 238,882.72

Step by Step Solution

1. Step 1: Write the proportion equation
   440,086.72 : 607,320.96 = 238,882.72 : x
2. Step 2: Convert to fraction form
   440,086.72/607,320.96 = 238,882.72/x
3. Step 3: Cross multiply
   440,086.72x = 607,320.96 × 238,882.72
4. Step 4: Simplify right side
   440,086.72x = 145,078,482,837.81
5. Step 5: Solve for x
   x = 145,078,482,837.81/440,086.72
6. Step 6: Final answer
   x = 329,658.85