Finding the Fourth Proportional to 142,422.03, 213,631.16 and 42,583.05

Step by Step Solution

1. Step 1: Write the proportion equation
   142,422.03 : 213,631.16 = 42,583.05 : x
2. Step 2: Convert to fraction form
   142,422.03/213,631.16 = 42,583.05/x
3. Step 3: Cross multiply
   142,422.03x = 213,631.16 × 42,583.05
4. Step 4: Simplify right side
   142,422.03x = 9,097,066,154.92
5. Step 5: Solve for x
   x = 9,097,066,154.92/142,422.03
6. Step 6: Final answer
   x = 63,874.01