Finding the Fourth Proportional to 142,573.96, 213,861.06 and 42,744.64

Step by Step Solution

1. Step 1: Write the proportion equation
   142,573.96 : 213,861.06 = 42,744.64 : x
2. Step 2: Convert to fraction form
   142,573.96/213,861.06 = 42,744.64/x
3. Step 3: Cross multiply
   142,573.96x = 213,861.06 × 42,744.64
4. Step 4: Simplify right side
   142,573.96x = 9,141,414,019.72
5. Step 5: Solve for x
   x = 9,141,414,019.72/142,573.96
6. Step 6: Final answer
   x = 64,117.00