Finding the Fourth Proportional to 801,313.98, 1,201,140.72 and 501,105.30

Step by Step Solution

1. Step 1: Write the proportion equation
   801,313.98 : 1,201,140.72 = 501,105.30 : x
2. Step 2: Convert to fraction form
   801,313.98/1,201,140.72 = 501,105.30/x
3. Step 3: Cross multiply
   801,313.98x = 1,201,140.72 × 501,105.30
4. Step 4: Simplify right side
   801,313.98x = 601,897,980,837.82
5. Step 5: Solve for x
   x = 601,897,980,837.82/801,313.98
6. Step 6: Final answer
   x = 751,138.75