Finding the Fourth Proportional to 726,151.23, 1,087,097.59 and 509,258.24

Step by Step Solution

1. Step 1: Write the proportion equation
   726,151.23 : 1,087,097.59 = 509,258.24 : x
2. Step 2: Convert to fraction form
   726,151.23/1,087,097.59 = 509,258.24/x
3. Step 3: Cross multiply
   726,151.23x = 1,087,097.59 × 509,258.24
4. Step 4: Simplify right side
   726,151.23x = 553,613,404,669.34
5. Step 5: Solve for x
   x = 553,613,404,669.34/726,151.23
6. Step 6: Final answer
   x = 762,394.09