Finding the Fourth Proportional to 13,777.47, 19,012.96 and 7,489.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,777.47 : 19,012.96 = 7,489.84 : x
2. Step 2: Convert to fraction form
   13,777.47/19,012.96 = 7,489.84/x
3. Step 3: Cross multiply
   13,777.47x = 19,012.96 × 7,489.84
4. Step 4: Simplify right side
   13,777.47x = 142,404,028.33
5. Step 5: Solve for x
   x = 142,404,028.33/13,777.47
6. Step 6: Final answer
   x = 10,336.01