Finding the Fourth Proportional to 142,256.16, 196,315.56 and 78,595.42

Step by Step Solution

1. Step 1: Write the proportion equation
   142,256.16 : 196,315.56 = 78,595.42 : x
2. Step 2: Convert to fraction form
   142,256.16/196,315.56 = 78,595.42/x
3. Step 3: Cross multiply
   142,256.16x = 196,315.56 × 78,595.42
4. Step 4: Simplify right side
   142,256.16x = 15,429,503,890.74
5. Step 5: Solve for x
   x = 15,429,503,890.74/142,256.16
6. Step 6: Final answer
   x = 108,462.82