Finding the Fourth Proportional to 142,100.56, 213,180.18 and 53,353.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,100.56 : 213,180.18 = 53,353.72 : x
2. Step 2: Convert to fraction form
   142,100.56/213,180.18 = 53,353.72/x
3. Step 3: Cross multiply
   142,100.56x = 213,180.18 × 53,353.72
4. Step 4: Simplify right side
   142,100.56x = 11,373,955,633.27
5. Step 5: Solve for x
   x = 11,373,955,633.27/142,100.56
6. Step 6: Final answer
   x = 80,041.60