Finding the Fourth Proportional to 58,086.45, 87,133.32 and 18,642.69

Step by Step Solution

1. Step 1: Write the proportion equation
   58,086.45 : 87,133.32 = 18,642.69 : x
2. Step 2: Convert to fraction form
   58,086.45/87,133.32 = 18,642.69/x
3. Step 3: Cross multiply
   58,086.45x = 87,133.32 × 18,642.69
4. Step 4: Simplify right side
   58,086.45x = 1,624,399,473.43
5. Step 5: Solve for x
   x = 1,624,399,473.43/58,086.45
6. Step 6: Final answer
   x = 27,965.20