Finding the Fourth Proportional to 12,799.49, 19,186.06 and 4,900.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,799.49 : 19,186.06 = 4,900.15 : x
2. Step 2: Convert to fraction form
   12,799.49/19,186.06 = 4,900.15/x
3. Step 3: Cross multiply
   12,799.49x = 19,186.06 × 4,900.15
4. Step 4: Simplify right side
   12,799.49x = 94,014,530.07
5. Step 5: Solve for x
   x = 94,014,530.07/12,799.49
6. Step 6: Final answer
   x = 7,345.18