Finding the Fourth Proportional to 142,609.37, 196,803.25 and 78,077.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,609.37 : 196,803.25 = 78,077.52 : x
2. Step 2: Convert to fraction form
   142,609.37/196,803.25 = 78,077.52/x
3. Step 3: Cross multiply
   142,609.37x = 196,803.25 × 78,077.52
4. Step 4: Simplify right side
   142,609.37x = 15,365,909,687.94
5. Step 5: Solve for x
   x = 15,365,909,687.94/142,609.37
6. Step 6: Final answer
   x = 107,748.25