Finding the Fourth Proportional to 20,873.50, 31,312.18 and 7,549.82

Step by Step Solution

1. Step 1: Write the proportion equation
   20,873.50 : 31,312.18 = 7,549.82 : x
2. Step 2: Convert to fraction form
   20,873.50/31,312.18 = 7,549.82/x
3. Step 3: Cross multiply
   20,873.50x = 31,312.18 × 7,549.82
4. Step 4: Simplify right side
   20,873.50x = 236,401,322.81
5. Step 5: Solve for x
   x = 236,401,322.81/20,873.50
6. Step 6: Final answer
   x = 11,325.43