Finding the Fourth Proportional to 14,585.08, 21,878.78 and 7,185.51

Step by Step Solution

1. Step 1: Write the proportion equation
   14,585.08 : 21,878.78 = 7,185.51 : x
2. Step 2: Convert to fraction form
   14,585.08/21,878.78 = 7,185.51/x
3. Step 3: Cross multiply
   14,585.08x = 21,878.78 × 7,185.51
4. Step 4: Simplify right side
   14,585.08x = 157,210,047.16
5. Step 5: Solve for x
   x = 157,210,047.16/14,585.08
6. Step 6: Final answer
   x = 10,778.82