Finding the Fourth Proportional to 142,030,939.62, 212,858,067.72 and 72,940,952.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,030,939.62 : 212,858,067.72 = 72,940,952.42 : x
2. Step 2: Convert to fraction form
   142,030,939.62/212,858,067.72 = 72,940,952.42/x
3. Step 3: Cross multiply
   142,030,939.62x = 212,858,067.72 × 72,940,952.42
4. Step 4: Simplify right side
   142,030,939.62x = 15,526,070,188,713,368
5. Step 5: Solve for x
   x = 15,526,070,188,713,368/142,030,939.62
6. Step 6: Final answer
   x = 109,314,704.46