Finding the Fourth Proportional to 2,210,142,338.28, 3,049,980,911.12 and 1,206,559,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210,142,338.28 : 3,049,980,911.12 = 1,206,559,905.50 : x
2. Step 2: Convert to fraction form
   2,210,142,338.28/3,049,980,911.12 = 1,206,559,905.50/x
3. Step 3: Cross multiply
   2,210,142,338.28x = 3,049,980,911.12 × 1,206,559,905.50
4. Step 4: Simplify right side
   2,210,142,338.28x = 3,679,984,679,891,718,144
5. Step 5: Solve for x
   x = 3,679,984,679,891,718,144/2,210,142,338.28
6. Step 6: Final answer
   x = 1,665,044,199.26