Finding the Fourth Proportional to 87,185, 130,778.72 and 24,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,185 : 130,778.72 = 24,855.50 : x
2. Step 2: Convert to fraction form
   87,185/130,778.72 = 24,855.50/x
3. Step 3: Cross multiply
   87,185x = 130,778.72 × 24,855.50
4. Step 4: Simplify right side
   87,185x = 3,250,570,474.96
5. Step 5: Solve for x
   x = 3,250,570,474.96/87,185
6. Step 6: Final answer
   x = 37,283.60