Finding the Fourth Proportional to 13,155.73, 19,733.05 and 7,308.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,155.73 : 19,733.05 = 7,308.61 : x
2. Step 2: Convert to fraction form
   13,155.73/19,733.05 = 7,308.61/x
3. Step 3: Cross multiply
   13,155.73x = 19,733.05 × 7,308.61
4. Step 4: Simplify right side
   13,155.73x = 144,221,166.56
5. Step 5: Solve for x
   x = 144,221,166.56/13,155.73
6. Step 6: Final answer
   x = 10,962.61