Finding the Fourth Proportional to 87,823.51, 131,756.22 and 28,659.29

Step by Step Solution

1. Step 1: Write the proportion equation
   87,823.51 : 131,756.22 = 28,659.29 : x
2. Step 2: Convert to fraction form
   87,823.51/131,756.22 = 28,659.29/x
3. Step 3: Cross multiply
   87,823.51x = 131,756.22 × 28,659.29
4. Step 4: Simplify right side
   87,823.51x = 3,776,039,059.50
5. Step 5: Solve for x
   x = 3,776,039,059.50/87,823.51
6. Step 6: Final answer
   x = 42,995.77