Finding the Fourth Proportional to 142,196.58, 196,227.50 and 78,533.01

Step by Step Solution

1. Step 1: Write the proportion equation
   142,196.58 : 196,227.50 = 78,533.01 : x
2. Step 2: Convert to fraction form
   142,196.58/196,227.50 = 78,533.01/x
3. Step 3: Cross multiply
   142,196.58x = 196,227.50 × 78,533.01
4. Step 4: Simplify right side
   142,196.58x = 15,410,335,827.11
5. Step 5: Solve for x
   x = 15,410,335,827.11/142,196.58
6. Step 6: Final answer
   x = 108,373.46