Finding the Fourth Proportional to 10,729.58, 16,090.30 and 5,181.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,729.58 : 16,090.30 = 5,181.08 : x
2. Step 2: Convert to fraction form
   10,729.58/16,090.30 = 5,181.08/x
3. Step 3: Cross multiply
   10,729.58x = 16,090.30 × 5,181.08
4. Step 4: Simplify right side
   10,729.58x = 83,365,131.52
5. Step 5: Solve for x
   x = 83,365,131.52/10,729.58
6. Step 6: Final answer
   x = 7,769.65