Finding the Fourth Proportional to 55,320.16, 82,980.50 and 13,767.16

Step by Step Solution

1. Step 1: Write the proportion equation
   55,320.16 : 82,980.50 = 13,767.16 : x
2. Step 2: Convert to fraction form
   55,320.16/82,980.50 = 13,767.16/x
3. Step 3: Cross multiply
   55,320.16x = 82,980.50 × 13,767.16
4. Step 4: Simplify right side
   55,320.16x = 1,142,405,820.38
5. Step 5: Solve for x
   x = 1,142,405,820.38/55,320.16
6. Step 6: Final answer
   x = 20,650.80