Finding the Fourth Proportional to 959,018,488.52, 1,323,440,648.52 and 518,985,340.52

Step by Step Solution

1. Step 1: Write the proportion equation
   959,018,488.52 : 1,323,440,648.52 = 518,985,340.52 : x
2. Step 2: Convert to fraction form
   959,018,488.52/1,323,440,648.52 = 518,985,340.52/x
3. Step 3: Cross multiply
   959,018,488.52x = 1,323,440,648.52 × 518,985,340.52
4. Step 4: Simplify right side
   959,018,488.52x = 686,846,295,630,161,792
5. Step 5: Solve for x
   x = 686,846,295,630,161,792/959,018,488.52
6. Step 6: Final answer
   x = 716,197,136.81