Finding the Fourth Proportional to 18,111.16, 27,170.58 and 5,630.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,111.16 : 27,170.58 = 5,630.88 : x
2. Step 2: Convert to fraction form
   18,111.16/27,170.58 = 5,630.88/x
3. Step 3: Cross multiply
   18,111.16x = 27,170.58 × 5,630.88
4. Step 4: Simplify right side
   18,111.16x = 152,994,275.51
5. Step 5: Solve for x
   x = 152,994,275.51/18,111.16
6. Step 6: Final answer
   x = 8,447.51