Finding the Fourth Proportional to 1,146,146,118.84, 1,581,672,136.04 and 644,357,139.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146,146,118.84 : 1,581,672,136.04 = 644,357,139.22 : x
2. Step 2: Convert to fraction form
   1,146,146,118.84/1,581,672,136.04 = 644,357,139.22/x
3. Step 3: Cross multiply
   1,146,146,118.84x = 1,581,672,136.04 × 644,357,139.22
4. Step 4: Simplify right side
   1,146,146,118.84x = 1,019,161,732,762,721,024
5. Step 5: Solve for x
   x = 1,019,161,732,762,721,024/1,146,146,118.84
6. Step 6: Final answer
   x = 889,207,506.80