Finding the Fourth Proportional to 10,992.51, 16,482.69 and 4,415.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.51 : 16,482.69 = 4,415.31 : x
2. Step 2: Convert to fraction form
   10,992.51/16,482.69 = 4,415.31/x
3. Step 3: Cross multiply
   10,992.51x = 16,482.69 × 4,415.31
4. Step 4: Simplify right side
   10,992.51x = 72,776,185.98
5. Step 5: Solve for x
   x = 72,776,185.98/10,992.51
6. Step 6: Final answer
   x = 6,620.52