Finding the Fourth Proportional to 1,443,213,893.34, 1,991,635,173 and 783,164,171.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,213,893.34 : 1,991,635,173 = 783,164,171.34 : x
2. Step 2: Convert to fraction form
   1,443,213,893.34/1,991,635,173 = 783,164,171.34/x
3. Step 3: Cross multiply
   1,443,213,893.34x = 1,991,635,173 × 783,164,171.34
4. Step 4: Simplify right side
   1,443,213,893.34x = 1,559,777,309,874,142,720
5. Step 5: Solve for x
   x = 1,559,777,309,874,142,720/1,443,213,893.34
6. Step 6: Final answer
   x = 1,080,766,556.55