Finding the Fourth Proportional to 142,411.56, 213,660.16 and 42,575

Step by Step Solution

1. Step 1: Write the proportion equation
   142,411.56 : 213,660.16 = 42,575 : x
2. Step 2: Convert to fraction form
   142,411.56/213,660.16 = 42,575/x
3. Step 3: Cross multiply
   142,411.56x = 213,660.16 × 42,575
4. Step 4: Simplify right side
   142,411.56x = 9,096,581,312
5. Step 5: Solve for x
   x = 9,096,581,312/142,411.56
6. Step 6: Final answer
   x = 63,875.30