Finding the Fourth Proportional to 13,259.18, 18,298.50 and 7,291.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,259.18 : 18,298.50 = 7,291.46 : x
2. Step 2: Convert to fraction form
   13,259.18/18,298.50 = 7,291.46/x
3. Step 3: Cross multiply
   13,259.18x = 18,298.50 × 7,291.46
4. Step 4: Simplify right side
   13,259.18x = 133,422,780.81
5. Step 5: Solve for x
   x = 133,422,780.81/13,259.18
6. Step 6: Final answer
   x = 10,062.67