Finding the Fourth Proportional to 9,977.95, 13,770.18 and 5,501.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,977.95 : 13,770.18 = 5,501.68 : x
2. Step 2: Convert to fraction form
   9,977.95/13,770.18 = 5,501.68/x
3. Step 3: Cross multiply
   9,977.95x = 13,770.18 × 5,501.68
4. Step 4: Simplify right side
   9,977.95x = 75,759,096.39
5. Step 5: Solve for x
   x = 75,759,096.39/9,977.95
6. Step 6: Final answer
   x = 7,592.66