Finding the Fourth Proportional to 2,167,909,739.50, 2,991,715,440.22 and 1,228,112,381.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167,909,739.50 : 2,991,715,440.22 = 1,228,112,381.42 : x
2. Step 2: Convert to fraction form
   2,167,909,739.50/2,991,715,440.22 = 1,228,112,381.42/x
3. Step 3: Cross multiply
   2,167,909,739.50x = 2,991,715,440.22 × 1,228,112,381.42
4. Step 4: Simplify right side
   2,167,909,739.50x = 3,674,162,773,819,567,616
5. Step 5: Solve for x
   x = 3,674,162,773,819,567,616/2,167,909,739.50
6. Step 6: Final answer
   x = 1,694,795,086.20