Finding the Fourth Proportional to 142,697.32, 213,860.08 and 79,514.89

Step by Step Solution

1. Step 1: Write the proportion equation
   142,697.32 : 213,860.08 = 79,514.89 : x
2. Step 2: Convert to fraction form
   142,697.32/213,860.08 = 79,514.89/x
3. Step 3: Cross multiply
   142,697.32x = 213,860.08 × 79,514.89
4. Step 4: Simplify right side
   142,697.32x = 17,005,060,567.36
5. Step 5: Solve for x
   x = 17,005,060,567.36/142,697.32
6. Step 6: Final answer
   x = 119,168.74