Finding the Fourth Proportional to 13,188.84, 19,790.52 and 7,348.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,188.84 : 19,790.52 = 7,348.72 : x
2. Step 2: Convert to fraction form
   13,188.84/19,790.52 = 7,348.72/x
3. Step 3: Cross multiply
   13,188.84x = 19,790.52 × 7,348.72
4. Step 4: Simplify right side
   13,188.84x = 145,434,990.13
5. Step 5: Solve for x
   x = 145,434,990.13/13,188.84
6. Step 6: Final answer
   x = 11,027.13