Finding the Fourth Proportional to 213,050,399.57, 294,212,605.58 and 201,443,561.37

Step by Step Solution

1. Step 1: Write the proportion equation
   213,050,399.57 : 294,212,605.58 = 201,443,561.37 : x
2. Step 2: Convert to fraction form
   213,050,399.57/294,212,605.58 = 201,443,561.37/x
3. Step 3: Cross multiply
   213,050,399.57x = 294,212,605.58 × 201,443,561.37
4. Step 4: Simplify right side
   213,050,399.57x = 59,267,235,067,982,336
5. Step 5: Solve for x
   x = 59,267,235,067,982,336/213,050,399.57
6. Step 6: Final answer
   x = 278,184,106.61