Finding the Fourth Proportional to 87,651, 131,410.89 and 28,451.34

Step by Step Solution

1. Step 1: Write the proportion equation
   87,651 : 131,410.89 = 28,451.34 : x
2. Step 2: Convert to fraction form
   87,651/131,410.89 = 28,451.34/x
3. Step 3: Cross multiply
   87,651x = 131,410.89 × 28,451.34
4. Step 4: Simplify right side
   87,651x = 3,738,815,911.09
5. Step 5: Solve for x
   x = 3,738,815,911.09/87,651
6. Step 6: Final answer
   x = 42,655.71