Finding the Fourth Proportional to 87,446.86, 130,488.27 and 78,022.09

Step by Step Solution

1. Step 1: Write the proportion equation
   87,446.86 : 130,488.27 = 78,022.09 : x
2. Step 2: Convert to fraction form
   87,446.86/130,488.27 = 78,022.09/x
3. Step 3: Cross multiply
   87,446.86x = 130,488.27 × 78,022.09
4. Step 4: Simplify right side
   87,446.86x = 10,180,967,545.88
5. Step 5: Solve for x
   x = 10,180,967,545.88/87,446.86
6. Step 6: Final answer
   x = 116,424.62