Finding the Fourth Proportional to 142,258.42, 196,314.06 and 78,600.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,258.42 : 196,314.06 = 78,600.52 : x
2. Step 2: Convert to fraction form
   142,258.42/196,314.06 = 78,600.52/x
3. Step 3: Cross multiply
   142,258.42x = 196,314.06 × 78,600.52
4. Step 4: Simplify right side
   142,258.42x = 15,430,387,199.31
5. Step 5: Solve for x
   x = 15,430,387,199.31/142,258.42
6. Step 6: Final answer
   x = 108,467.30