Finding the Fourth Proportional to 142,196.76, 196,227.50 and 78,533.19

Step by Step Solution

1. Step 1: Write the proportion equation
   142,196.76 : 196,227.50 = 78,533.19 : x
2. Step 2: Convert to fraction form
   142,196.76/196,227.50 = 78,533.19/x
3. Step 3: Cross multiply
   142,196.76x = 196,227.50 × 78,533.19
4. Step 4: Simplify right side
   142,196.76x = 15,410,371,148.06
5. Step 5: Solve for x
   x = 15,410,371,148.06/142,196.76
6. Step 6: Final answer
   x = 108,373.57