Finding the Fourth Proportional to 13,314.69, 19,965.89 and 4,988.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,314.69 : 19,965.89 = 4,988.76 : x
2. Step 2: Convert to fraction form
   13,314.69/19,965.89 = 4,988.76/x
3. Step 3: Cross multiply
   13,314.69x = 19,965.89 × 4,988.76
4. Step 4: Simplify right side
   13,314.69x = 99,605,008.45
5. Step 5: Solve for x
   x = 99,605,008.45/13,314.69
6. Step 6: Final answer
   x = 7,480.84