Finding the Fourth Proportional to 13,498.95, 18,628.32 and 7,530.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,498.95 : 18,628.32 = 7,530.46 : x
2. Step 2: Convert to fraction form
   13,498.95/18,628.32 = 7,530.46/x
3. Step 3: Cross multiply
   13,498.95x = 18,628.32 × 7,530.46
4. Step 4: Simplify right side
   13,498.95x = 140,279,818.63
5. Step 5: Solve for x
   x = 140,279,818.63/13,498.95
6. Step 6: Final answer
   x = 10,391.91