Finding the Fourth Proportional to 561,893,300.17, 842,456,869.83 and 285,010,607.92

Step by Step Solution

1. Step 1: Write the proportion equation
   561,893,300.17 : 842,456,869.83 = 285,010,607.92 : x
2. Step 2: Convert to fraction form
   561,893,300.17/842,456,869.83 = 285,010,607.92/x
3. Step 3: Cross multiply
   561,893,300.17x = 842,456,869.83 × 285,010,607.92
4. Step 4: Simplify right side
   561,893,300.17x = 240,109,144,616,628,640
5. Step 5: Solve for x
   x = 240,109,144,616,628,640/561,893,300.17
6. Step 6: Final answer
   x = 427,321,600.99