Finding the Fourth Proportional to 142,597.35, 214,106.29 and 79,540.67

Step by Step Solution

1. Step 1: Write the proportion equation
   142,597.35 : 214,106.29 = 79,540.67 : x
2. Step 2: Convert to fraction form
   142,597.35/214,106.29 = 79,540.67/x
3. Step 3: Cross multiply
   142,597.35x = 214,106.29 × 79,540.67
4. Step 4: Simplify right side
   142,597.35x = 17,030,156,824.85
5. Step 5: Solve for x
   x = 17,030,156,824.85/142,597.35
6. Step 6: Final answer
   x = 119,428.29