Finding the Fourth Proportional to 13,275.89, 18,320.52 and 7,307.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,275.89 : 18,320.52 = 7,307.58 : x
2. Step 2: Convert to fraction form
   13,275.89/18,320.52 = 7,307.58/x
3. Step 3: Cross multiply
   13,275.89x = 18,320.52 × 7,307.58
4. Step 4: Simplify right side
   13,275.89x = 133,878,665.54
5. Step 5: Solve for x
   x = 133,878,665.54/13,275.89
6. Step 6: Final answer
   x = 10,084.35