Finding the Fourth Proportional to 142,258.68, 213,399 and 42,411.24

Step by Step Solution

1. Step 1: Write the proportion equation
   142,258.68 : 213,399 = 42,411.24 : x
2. Step 2: Convert to fraction form
   142,258.68/213,399 = 42,411.24/x
3. Step 3: Cross multiply
   142,258.68x = 213,399 × 42,411.24
4. Step 4: Simplify right side
   142,258.68x = 9,050,516,204.76
5. Step 5: Solve for x
   x = 9,050,516,204.76/142,258.68
6. Step 6: Final answer
   x = 63,620.13