Finding the Fourth Proportional to 9,977.77, 13,769.31 and 5,501.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,977.77 : 13,769.31 = 5,501.53 : x
2. Step 2: Convert to fraction form
   9,977.77/13,769.31 = 5,501.53/x
3. Step 3: Cross multiply
   9,977.77x = 13,769.31 × 5,501.53
4. Step 4: Simplify right side
   9,977.77x = 75,752,266.34
5. Step 5: Solve for x
   x = 75,752,266.34/9,977.77
6. Step 6: Final answer
   x = 7,592.10