Finding the Fourth Proportional to 142,572.42, 213,831.41 and 42,732.60

Step by Step Solution

1. Step 1: Write the proportion equation
   142,572.42 : 213,831.41 = 42,732.60 : x
2. Step 2: Convert to fraction form
   142,572.42/213,831.41 = 42,732.60/x
3. Step 3: Cross multiply
   142,572.42x = 213,831.41 × 42,732.60
4. Step 4: Simplify right side
   142,572.42x = 9,137,571,897.30
5. Step 5: Solve for x
   x = 9,137,571,897.30/142,572.42
6. Step 6: Final answer
   x = 64,090.74