Finding the Fourth Proportional to 87,499.10, 131,249.05 and 30,572.76

Step by Step Solution

1. Step 1: Write the proportion equation
   87,499.10 : 131,249.05 = 30,572.76 : x
2. Step 2: Convert to fraction form
   87,499.10/131,249.05 = 30,572.76/x
3. Step 3: Cross multiply
   87,499.10x = 131,249.05 × 30,572.76
4. Step 4: Simplify right side
   87,499.10x = 4,012,646,293.60
5. Step 5: Solve for x
   x = 4,012,646,293.60/87,499.10
6. Step 6: Final answer
   x = 45,859.29