Finding the Fourth Proportional to 1,090,375,091.76, 1,635,595,908.59 and 426,362,591.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090,375,091.76 : 1,635,595,908.59 = 426,362,591.37 : x
2. Step 2: Convert to fraction form
   1,090,375,091.76/1,635,595,908.59 = 426,362,591.37/x
3. Step 3: Cross multiply
   1,090,375,091.76x = 1,635,595,908.59 × 426,362,591.37
4. Step 4: Simplify right side
   1,090,375,091.76x = 697,356,910,020,601,984
5. Step 5: Solve for x
   x = 697,356,910,020,601,984/1,090,375,091.76
6. Step 6: Final answer
   x = 639,556,896.79