Finding the Fourth Proportional to 13,147.05, 19,689.12 and 7,588.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,147.05 : 19,689.12 = 7,588.83 : x
2. Step 2: Convert to fraction form
   13,147.05/19,689.12 = 7,588.83/x
3. Step 3: Cross multiply
   13,147.05x = 19,689.12 × 7,588.83
4. Step 4: Simplify right side
   13,147.05x = 149,417,384.53
5. Step 5: Solve for x
   x = 149,417,384.53/13,147.05
6. Step 6: Final answer
   x = 11,365.09