Finding the Fourth Proportional to 87,994.47, 131,959.50 and 31,821.10

Step by Step Solution

1. Step 1: Write the proportion equation
   87,994.47 : 131,959.50 = 31,821.10 : x
2. Step 2: Convert to fraction form
   87,994.47/131,959.50 = 31,821.10/x
3. Step 3: Cross multiply
   87,994.47x = 131,959.50 × 31,821.10
4. Step 4: Simplify right side
   87,994.47x = 4,199,096,445.45
5. Step 5: Solve for x
   x = 4,199,096,445.45/87,994.47
6. Step 6: Final answer
   x = 47,720.00