Finding the Fourth Proportional to 62,987.64, 86,919.72 and 34,687.86

Step by Step Solution

1. Step 1: Write the proportion equation
   62,987.64 : 86,919.72 = 34,687.86 : x
2. Step 2: Convert to fraction form
   62,987.64/86,919.72 = 34,687.86/x
3. Step 3: Cross multiply
   62,987.64x = 86,919.72 × 34,687.86
4. Step 4: Simplify right side
   62,987.64x = 3,015,059,078.60
5. Step 5: Solve for x
   x = 3,015,059,078.60/62,987.64
6. Step 6: Final answer
   x = 47,867.47