Finding the Fourth Proportional to 9,921.83, 14,878.32 and 4,652.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,921.83 : 14,878.32 = 4,652.57 : x
2. Step 2: Convert to fraction form
   9,921.83/14,878.32 = 4,652.57/x
3. Step 3: Cross multiply
   9,921.83x = 14,878.32 × 4,652.57
4. Step 4: Simplify right side
   9,921.83x = 69,222,350.89
5. Step 5: Solve for x
   x = 69,222,350.89/9,921.83
6. Step 6: Final answer
   x = 6,976.78