Finding the Fourth Proportional to 142,321.89, 213,519.83 and 42,482.10

Step by Step Solution

1. Step 1: Write the proportion equation
   142,321.89 : 213,519.83 = 42,482.10 : x
2. Step 2: Convert to fraction form
   142,321.89/213,519.83 = 42,482.10/x
3. Step 3: Cross multiply
   142,321.89x = 213,519.83 × 42,482.10
4. Step 4: Simplify right side
   142,321.89x = 9,070,770,557.63
5. Step 5: Solve for x
   x = 9,070,770,557.63/142,321.89
6. Step 6: Final answer
   x = 63,734.19