Finding the Fourth Proportional to 62,985.32, 86,919.72 and 34,691.12

Step by Step Solution

1. Step 1: Write the proportion equation
   62,985.32 : 86,919.72 = 34,691.12 : x
2. Step 2: Convert to fraction form
   62,985.32/86,919.72 = 34,691.12/x
3. Step 3: Cross multiply
   62,985.32x = 86,919.72 × 34,691.12
4. Step 4: Simplify right side
   62,985.32x = 3,015,342,436.89
5. Step 5: Solve for x
   x = 3,015,342,436.89/62,985.32
6. Step 6: Final answer
   x = 47,873.73