Finding the Fourth Proportional to 87,756.82, 131,645.59 and 30,813.28

Step by Step Solution

1. Step 1: Write the proportion equation
   87,756.82 : 131,645.59 = 30,813.28 : x
2. Step 2: Convert to fraction form
   87,756.82/131,645.59 = 30,813.28/x
3. Step 3: Cross multiply
   87,756.82x = 131,645.59 × 30,813.28
4. Step 4: Simplify right side
   87,756.82x = 4,056,432,019.29
5. Step 5: Solve for x
   x = 4,056,432,019.29/87,756.82
6. Step 6: Final answer
   x = 46,223.55