Finding the Fourth Proportional to 87,547.34, 131,287.98 and 28,367.12

Step by Step Solution

1. Step 1: Write the proportion equation
   87,547.34 : 131,287.98 = 28,367.12 : x
2. Step 2: Convert to fraction form
   87,547.34/131,287.98 = 28,367.12/x
3. Step 3: Cross multiply
   87,547.34x = 131,287.98 × 28,367.12
4. Step 4: Simplify right side
   87,547.34x = 3,724,261,883.22
5. Step 5: Solve for x
   x = 3,724,261,883.22/87,547.34
6. Step 6: Final answer
   x = 42,539.98