Finding the Fourth Proportional to 9,977.82, 13,769.58 and 5,729.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,977.82 : 13,769.58 = 5,729.58 : x
2. Step 2: Convert to fraction form
   9,977.82/13,769.58 = 5,729.58/x
3. Step 3: Cross multiply
   9,977.82x = 13,769.58 × 5,729.58
4. Step 4: Simplify right side
   9,977.82x = 78,893,910.18
5. Step 5: Solve for x
   x = 78,893,910.18/9,977.82
6. Step 6: Final answer
   x = 7,906.93