Finding the Fourth Proportional to 142,260,565.38, 196,317,025.83 and 80,379,575.34

Step by Step Solution

1. Step 1: Write the proportion equation
   142,260,565.38 : 196,317,025.83 = 80,379,575.34 : x
2. Step 2: Convert to fraction form
   142,260,565.38/196,317,025.83 = 80,379,575.34/x
3. Step 3: Cross multiply
   142,260,565.38x = 196,317,025.83 × 80,379,575.34
4. Step 4: Simplify right side
   142,260,565.38x = 15,779,879,168,227,212
5. Step 5: Solve for x
   x = 15,779,879,168,227,212/142,260,565.38
6. Step 6: Final answer
   x = 110,922,370.69