Finding the Fourth Proportional to 508,784.27, 763,183.32 and 188,812.50

Step by Step Solution

1. Step 1: Write the proportion equation
   508,784.27 : 763,183.32 = 188,812.50 : x
2. Step 2: Convert to fraction form
   508,784.27/763,183.32 = 188,812.50/x
3. Step 3: Cross multiply
   508,784.27x = 763,183.32 × 188,812.50
4. Step 4: Simplify right side
   508,784.27x = 144,098,548,453.61
5. Step 5: Solve for x
   x = 144,098,548,453.61/508,784.27
6. Step 6: Final answer
   x = 283,221.31