Finding the Fourth Proportional to 12,493.94, 17,242.88 and 7,458.11

Step by Step Solution

1. Step 1: Write the proportion equation
   12,493.94 : 17,242.88 = 7,458.11 : x
2. Step 2: Convert to fraction form
   12,493.94/17,242.88 = 7,458.11/x
3. Step 3: Cross multiply
   12,493.94x = 17,242.88 × 7,458.11
4. Step 4: Simplify right side
   12,493.94x = 128,599,172.25
5. Step 5: Solve for x
   x = 128,599,172.25/12,493.94
6. Step 6: Final answer
   x = 10,292.93