Finding the Fourth Proportional to 20,881.98, 31,329.83 and 7,735.34

Step by Step Solution

1. Step 1: Write the proportion equation
   20,881.98 : 31,329.83 = 7,735.34 : x
2. Step 2: Convert to fraction form
   20,881.98/31,329.83 = 7,735.34/x
3. Step 3: Cross multiply
   20,881.98x = 31,329.83 × 7,735.34
4. Step 4: Simplify right side
   20,881.98x = 242,346,887.19
5. Step 5: Solve for x
   x = 242,346,887.19/20,881.98
6. Step 6: Final answer
   x = 11,605.55