Finding the Fourth Proportional to 20,776.51, 31,146.27 and 7,625.83

Step by Step Solution

1. Step 1: Write the proportion equation
   20,776.51 : 31,146.27 = 7,625.83 : x
2. Step 2: Convert to fraction form
   20,776.51/31,146.27 = 7,625.83/x
3. Step 3: Cross multiply
   20,776.51x = 31,146.27 × 7,625.83
4. Step 4: Simplify right side
   20,776.51x = 237,516,122.02
5. Step 5: Solve for x
   x = 237,516,122.02/20,776.51
6. Step 6: Final answer
   x = 11,431.95