Finding the Fourth Proportional to 482,003.16, 723,155.88 and 290,086.98

Step by Step Solution

1. Step 1: Write the proportion equation
   482,003.16 : 723,155.88 = 290,086.98 : x
2. Step 2: Convert to fraction form
   482,003.16/723,155.88 = 290,086.98/x
3. Step 3: Cross multiply
   482,003.16x = 723,155.88 × 290,086.98
4. Step 4: Simplify right side
   482,003.16x = 209,778,105,298.44
5. Step 5: Solve for x
   x = 209,778,105,298.44/482,003.16
6. Step 6: Final answer
   x = 435,221.43