Finding the Fourth Proportional to 142,326.20, 213,526.29 and 42,486.41

Step by Step Solution

1. Step 1: Write the proportion equation
   142,326.20 : 213,526.29 = 42,486.41 : x
2. Step 2: Convert to fraction form
   142,326.20/213,526.29 = 42,486.41/x
3. Step 3: Cross multiply
   142,326.20x = 213,526.29 × 42,486.41
4. Step 4: Simplify right side
   142,326.20x = 9,071,966,036.53
5. Step 5: Solve for x
   x = 9,071,966,036.53/142,326.20
6. Step 6: Final answer
   x = 63,740.66