Finding the Fourth Proportional to 553,301.33, 828,665.69 and 534,123.09

Step by Step Solution

1. Step 1: Write the proportion equation
   553,301.33 : 828,665.69 = 534,123.09 : x
2. Step 2: Convert to fraction form
   553,301.33/828,665.69 = 534,123.09/x
3. Step 3: Cross multiply
   553,301.33x = 828,665.69 × 534,123.09
4. Step 4: Simplify right side
   553,301.33x = 442,609,476,249.17
5. Step 5: Solve for x
   x = 442,609,476,249.17/553,301.33
6. Step 6: Final answer
   x = 799,942.92