Finding the Fourth Proportional to 524,081.42, 723,258 and 294,710.89

Step by Step Solution

1. Step 1: Write the proportion equation
   524,081.42 : 723,258 = 294,710.89 : x
2. Step 2: Convert to fraction form
   524,081.42/723,258 = 294,710.89/x
3. Step 3: Cross multiply
   524,081.42x = 723,258 × 294,710.89
4. Step 4: Simplify right side
   524,081.42x = 213,152,007,071.48
5. Step 5: Solve for x
   x = 213,152,007,071.48/524,081.42
6. Step 6: Final answer
   x = 406,715.44