Finding the Fourth Proportional to 198,443,069.98, 297,704,338.50 and 111,128,756.42

Step by Step Solution

1. Step 1: Write the proportion equation
   198,443,069.98 : 297,704,338.50 = 111,128,756.42 : x
2. Step 2: Convert to fraction form
   198,443,069.98/297,704,338.50 = 111,128,756.42/x
3. Step 3: Cross multiply
   198,443,069.98x = 297,704,338.50 × 111,128,756.42
4. Step 4: Simplify right side
   198,443,069.98x = 33,083,512,918,343,728
5. Step 5: Solve for x
   x = 33,083,512,918,343,728/198,443,069.98
6. Step 6: Final answer
   x = 166,715,385.53