Finding the Fourth Proportional to 142,528.89, 213,733.18 and 42,703.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,528.89 : 213,733.18 = 42,703.27 : x
2. Step 2: Convert to fraction form
   142,528.89/213,733.18 = 42,703.27/x
3. Step 3: Cross multiply
   142,528.89x = 213,733.18 × 42,703.27
4. Step 4: Simplify right side
   142,528.89x = 9,127,105,693.50
5. Step 5: Solve for x
   x = 9,127,105,693.50/142,528.89
6. Step 6: Final answer
   x = 64,036.88