Finding the Fourth Proportional to 13,507.47, 18,618.00 and 9,029.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,507.47 : 18,618.00 = 9,029.59 : x
2. Step 2: Convert to fraction form
   13,507.47/18,618.00 = 9,029.59/x
3. Step 3: Cross multiply
   13,507.47x = 18,618.00 × 9,029.59
4. Step 4: Simplify right side
   13,507.47x = 168,112,826.21
5. Step 5: Solve for x
   x = 168,112,826.21/13,507.47
6. Step 6: Final answer
   x = 12,445.92