Finding the Fourth Proportional to 715,025.53, 1,072,521.89 and 359,944.21

Step by Step Solution

1. Step 1: Write the proportion equation
   715,025.53 : 1,072,521.89 = 359,944.21 : x
2. Step 2: Convert to fraction form
   715,025.53/1,072,521.89 = 359,944.21/x
3. Step 3: Cross multiply
   715,025.53x = 1,072,521.89 × 359,944.21
4. Step 4: Simplify right side
   715,025.53x = 386,048,044,403.76
5. Step 5: Solve for x
   x = 386,048,044,403.76/715,025.53
6. Step 6: Final answer
   x = 539,908.06