Finding the Fourth Proportional to 13,498.02, 18,628.71 and 7,531.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,498.02 : 18,628.71 = 7,531.76 : x
2. Step 2: Convert to fraction form
   13,498.02/18,628.71 = 7,531.76/x
3. Step 3: Cross multiply
   13,498.02x = 18,628.71 × 7,531.76
4. Step 4: Simplify right side
   13,498.02x = 140,306,972.83
5. Step 5: Solve for x
   x = 140,306,972.83/13,498.02
6. Step 6: Final answer
   x = 10,394.63