Finding the Fourth Proportional to 1,023,139,838.40, 1,411,847,680.32 and 577,078,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,023,139,838.40 : 1,411,847,680.32 = 577,078,618.56 : x
2. Step 2: Convert to fraction form
   1,023,139,838.40/1,411,847,680.32 = 577,078,618.56/x
3. Step 3: Cross multiply
   1,023,139,838.40x = 1,411,847,680.32 × 577,078,618.56
4. Step 4: Simplify right side
   1,023,139,838.40x = 814,747,108,976,205,952
5. Step 5: Solve for x
   x = 814,747,108,976,205,952/1,023,139,838.40
6. Step 6: Final answer
   x = 796,320,383.98