Finding the Fourth Proportional to 711,788,978.28, 1,066,930,135.02 and 323,884,212.15

Step by Step Solution

1. Step 1: Write the proportion equation
   711,788,978.28 : 1,066,930,135.02 = 323,884,212.15 : x
2. Step 2: Convert to fraction form
   711,788,978.28/1,066,930,135.02 = 323,884,212.15/x
3. Step 3: Cross multiply
   711,788,978.28x = 1,066,930,135.02 × 323,884,212.15
4. Step 4: Simplify right side
   711,788,978.28x = 345,561,826,200,045,824
5. Step 5: Solve for x
   x = 345,561,826,200,045,824/711,788,978.28
6. Step 6: Final answer
   x = 485,483,530.58