Finding the Fourth Proportional to 1,090,783,541.55, 1,636,405,384.73 and 353,796,209.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090,783,541.55 : 1,636,405,384.73 = 353,796,209.31 : x
2. Step 2: Convert to fraction form
   1,090,783,541.55/1,636,405,384.73 = 353,796,209.31/x
3. Step 3: Cross multiply
   1,090,783,541.55x = 1,636,405,384.73 × 353,796,209.31
4. Step 4: Simplify right side
   1,090,783,541.55x = 578,954,022,010,177,152
5. Step 5: Solve for x
   x = 578,954,022,010,177,152/1,090,783,541.55
6. Step 6: Final answer
   x = 530,768,938.07