Finding the Fourth Proportional to 417,826.27, 626,499.01 and 222,838.92

Step by Step Solution

1. Step 1: Write the proportion equation
   417,826.27 : 626,499.01 = 222,838.92 : x
2. Step 2: Convert to fraction form
   417,826.27/626,499.01 = 222,838.92/x
3. Step 3: Cross multiply
   417,826.27x = 626,499.01 × 222,838.92
4. Step 4: Simplify right side
   417,826.27x = 139,608,362,769.47
5. Step 5: Solve for x
   x = 139,608,362,769.47/417,826.27
6. Step 6: Final answer
   x = 334,130.17