Finding the Fourth Proportional to 510,875.91, 705,008.76 and 284,521.41

Step by Step Solution

1. Step 1: Write the proportion equation
   510,875.91 : 705,008.76 = 284,521.41 : x
2. Step 2: Convert to fraction form
   510,875.91/705,008.76 = 284,521.41/x
3. Step 3: Cross multiply
   510,875.91x = 705,008.76 × 284,521.41
4. Step 4: Simplify right side
   510,875.91x = 200,590,086,457.55
5. Step 5: Solve for x
   x = 200,590,086,457.55/510,875.91
6. Step 6: Final answer
   x = 392,639.55