Finding the Fourth Proportional to 10,899.54, 16,346.37 and 4,656.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,899.54 : 16,346.37 = 4,656.45 : x
2. Step 2: Convert to fraction form
   10,899.54/16,346.37 = 4,656.45/x
3. Step 3: Cross multiply
   10,899.54x = 16,346.37 × 4,656.45
4. Step 4: Simplify right side
   10,899.54x = 76,116,054.59
5. Step 5: Solve for x
   x = 76,116,054.59/10,899.54
6. Step 6: Final answer
   x = 6,983.42