Finding the Fourth Proportional to 87,870.27, 121,261.55 and 47,584.04

Step by Step Solution

1. Step 1: Write the proportion equation
   87,870.27 : 121,261.55 = 47,584.04 : x
2. Step 2: Convert to fraction form
   87,870.27/121,261.55 = 47,584.04/x
3. Step 3: Cross multiply
   87,870.27x = 121,261.55 × 47,584.04
4. Step 4: Simplify right side
   87,870.27x = 5,770,113,601.43
5. Step 5: Solve for x
   x = 5,770,113,601.43/87,870.27
6. Step 6: Final answer
   x = 65,666.28