Finding the Fourth Proportional to 87,072.69, 130,667.29 and 31,668.69

Step by Step Solution

1. Step 1: Write the proportion equation
   87,072.69 : 130,667.29 = 31,668.69 : x
2. Step 2: Convert to fraction form
   87,072.69/130,667.29 = 31,668.69/x
3. Step 3: Cross multiply
   87,072.69x = 130,667.29 × 31,668.69
4. Step 4: Simplify right side
   87,072.69x = 4,138,061,900.15
5. Step 5: Solve for x
   x = 4,138,061,900.15/87,072.69
6. Step 6: Final answer
   x = 47,524.22