Finding the Fourth Proportional to 142,175,704.38, 196,202,738.98 and 79,451,802.78

Step by Step Solution

1. Step 1: Write the proportion equation
   142,175,704.38 : 196,202,738.98 = 79,451,802.78 : x
2. Step 2: Convert to fraction form
   142,175,704.38/196,202,738.98 = 79,451,802.78/x
3. Step 3: Cross multiply
   142,175,704.38x = 196,202,738.98 × 79,451,802.78
4. Step 4: Simplify right side
   142,175,704.38x = 15,588,661,321,353,764
5. Step 5: Solve for x
   x = 15,588,661,321,353,764/142,175,704.38
6. Step 6: Final answer
   x = 109,643,637.00