Finding the Fourth Proportional to 20,796.93, 31,199.58 and 7,649.01

Step by Step Solution

1. Step 1: Write the proportion equation
   20,796.93 : 31,199.58 = 7,649.01 : x
2. Step 2: Convert to fraction form
   20,796.93/31,199.58 = 7,649.01/x
3. Step 3: Cross multiply
   20,796.93x = 31,199.58 × 7,649.01
4. Step 4: Simplify right side
   20,796.93x = 238,645,899.42
5. Step 5: Solve for x
   x = 238,645,899.42/20,796.93
6. Step 6: Final answer
   x = 11,475.05