Finding the Fourth Proportional to 9,935.05, 13,709.69 and 5,458.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,935.05 : 13,709.69 = 5,458.99 : x
2. Step 2: Convert to fraction form
   9,935.05/13,709.69 = 5,458.99/x
3. Step 3: Cross multiply
   9,935.05x = 13,709.69 × 5,458.99
4. Step 4: Simplify right side
   9,935.05x = 74,841,060.61
5. Step 5: Solve for x
   x = 74,841,060.61/9,935.05
6. Step 6: Final answer
   x = 7,533.03