Finding the Fourth Proportional to 142,091.28, 213,136.86 and 42,251.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,091.28 : 213,136.86 = 42,251.04 : x
2. Step 2: Convert to fraction form
   142,091.28/213,136.86 = 42,251.04/x
3. Step 3: Cross multiply
   142,091.28x = 213,136.86 × 42,251.04
4. Step 4: Simplify right side
   142,091.28x = 9,005,253,997.33
5. Step 5: Solve for x
   x = 9,005,253,997.33/142,091.28
6. Step 6: Final answer
   x = 63,376.54