Finding the Fourth Proportional to 142,030.37, 196,005.98 and 78,372.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,030.37 : 196,005.98 = 78,372.27 : x
2. Step 2: Convert to fraction form
   142,030.37/196,005.98 = 78,372.27/x
3. Step 3: Cross multiply
   142,030.37x = 196,005.98 × 78,372.27
4. Step 4: Simplify right side
   142,030.37x = 15,361,433,047.08
5. Step 5: Solve for x
   x = 15,361,433,047.08/142,030.37
6. Step 6: Final answer
   x = 108,155.98