Finding the Fourth Proportional to 20,181.83, 30,268.53 and 7,699.05

Step by Step Solution

1. Step 1: Write the proportion equation
   20,181.83 : 30,268.53 = 7,699.05 : x
2. Step 2: Convert to fraction form
   20,181.83/30,268.53 = 7,699.05/x
3. Step 3: Cross multiply
   20,181.83x = 30,268.53 × 7,699.05
4. Step 4: Simplify right side
   20,181.83x = 233,038,925.90
5. Step 5: Solve for x
   x = 233,038,925.90/20,181.83
6. Step 6: Final answer
   x = 11,546.97