Finding the Fourth Proportional to 333,008,988.52, 459,497,581.86 and 209,161,446.76

Step by Step Solution

1. Step 1: Write the proportion equation
   333,008,988.52 : 459,497,581.86 = 209,161,446.76 : x
2. Step 2: Convert to fraction form
   333,008,988.52/459,497,581.86 = 209,161,446.76/x
3. Step 3: Cross multiply
   333,008,988.52x = 459,497,581.86 × 209,161,446.76
4. Step 4: Simplify right side
   333,008,988.52x = 96,109,179,004,559,136
5. Step 5: Solve for x
   x = 96,109,179,004,559,136/333,008,988.52
6. Step 6: Final answer
   x = 288,608,362.89