Finding the Fourth Proportional to 649,938,871.48, 896,915,642.72 and 371,486,373.72

Step by Step Solution

1. Step 1: Write the proportion equation
   649,938,871.48 : 896,915,642.72 = 371,486,373.72 : x
2. Step 2: Convert to fraction form
   649,938,871.48/896,915,642.72 = 371,486,373.72/x
3. Step 3: Cross multiply
   649,938,871.48x = 896,915,642.72 × 371,486,373.72
4. Step 4: Simplify right side
   649,938,871.48x = 333,191,939,646,795,968
5. Step 5: Solve for x
   x = 333,191,939,646,795,968/649,938,871.48
6. Step 6: Final answer
   x = 512,651,195.78