Finding the Fourth Proportional to 1,031,626,228.69, 1,423,638,131.59 and 561,726,424.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031,626,228.69 : 1,423,638,131.59 = 561,726,424.54 : x
2. Step 2: Convert to fraction form
   1,031,626,228.69/1,423,638,131.59 = 561,726,424.54/x
3. Step 3: Cross multiply
   1,031,626,228.69x = 1,423,638,131.59 × 561,726,424.54
4. Step 4: Simplify right side
   1,031,626,228.69x = 799,695,157,496,856,576
5. Step 5: Solve for x
   x = 799,695,157,496,856,576/1,031,626,228.69
6. Step 6: Final answer
   x = 775,179,163.98