Finding the Fourth Proportional to 42,663.12, 58,870.44 and 30,066

Step by Step Solution

1. Step 1: Write the proportion equation
   42,663.12 : 58,870.44 = 30,066 : x
2. Step 2: Convert to fraction form
   42,663.12/58,870.44 = 30,066/x
3. Step 3: Cross multiply
   42,663.12x = 58,870.44 × 30,066
4. Step 4: Simplify right side
   42,663.12x = 1,769,998,649.04
5. Step 5: Solve for x
   x = 1,769,998,649.04/42,663.12
6. Step 6: Final answer
   x = 41,487.79