Finding the Fourth Proportional to 58,443.18, 87,609.28 and 18,972.69

Step by Step Solution

1. Step 1: Write the proportion equation
   58,443.18 : 87,609.28 = 18,972.69 : x
2. Step 2: Convert to fraction form
   58,443.18/87,609.28 = 18,972.69/x
3. Step 3: Cross multiply
   58,443.18x = 87,609.28 × 18,972.69
4. Step 4: Simplify right side
   58,443.18x = 1,662,183,710.56
5. Step 5: Solve for x
   x = 1,662,183,710.56/58,443.18
6. Step 6: Final answer
   x = 28,441.02