Finding the Fourth Proportional to 2,170,567,975.50, 2,995,385,282.82 and 1,217,817,189.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,170,567,975.50 : 2,995,385,282.82 = 1,217,817,189.72 : x
2. Step 2: Convert to fraction form
   2,170,567,975.50/2,995,385,282.82 = 1,217,817,189.72/x
3. Step 3: Cross multiply
   2,170,567,975.50x = 2,995,385,282.82 × 1,217,817,189.72
4. Step 4: Simplify right side
   2,170,567,975.50x = 3,647,831,687,252,499,968
5. Step 5: Solve for x
   x = 3,647,831,687,252,499,968/2,170,567,975.50
6. Step 6: Final answer
   x = 1,680,588,550.29