Finding the Fourth Proportional to 87,561.72, 120,823.02 and 49,314.84

Step by Step Solution

1. Step 1: Write the proportion equation
   87,561.72 : 120,823.02 = 49,314.84 : x
2. Step 2: Convert to fraction form
   87,561.72/120,823.02 = 49,314.84/x
3. Step 3: Cross multiply
   87,561.72x = 120,823.02 × 49,314.84
4. Step 4: Simplify right side
   87,561.72x = 5,958,367,899.62
5. Step 5: Solve for x
   x = 5,958,367,899.62/87,561.72
6. Step 6: Final answer
   x = 68,047.63