Finding the Fourth Proportional to 562,833.19, 776,185.03 and 521,034.15

Step by Step Solution

1. Step 1: Write the proportion equation
   562,833.19 : 776,185.03 = 521,034.15 : x
2. Step 2: Convert to fraction form
   562,833.19/776,185.03 = 521,034.15/x
3. Step 3: Cross multiply
   562,833.19x = 776,185.03 × 521,034.15
4. Step 4: Simplify right side
   562,833.19x = 404,418,907,348.78
5. Step 5: Solve for x
   x = 404,418,907,348.78/562,833.19
6. Step 6: Final answer
   x = 718,541.33