Finding the Fourth Proportional to 142,059.96, 196,047.44 and 77,532.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,059.96 : 196,047.44 = 77,532.72 : x
2. Step 2: Convert to fraction form
   142,059.96/196,047.44 = 77,532.72/x
3. Step 3: Cross multiply
   142,059.96x = 196,047.44 × 77,532.72
4. Step 4: Simplify right side
   142,059.96x = 15,200,091,272.24
5. Step 5: Solve for x
   x = 15,200,091,272.24/142,059.96
6. Step 6: Final answer
   x = 106,997.72