Finding the Fourth Proportional to 10,009.86, 15,018.03 and 7,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,009.86 : 15,018.03 = 7,048.50 : x
2. Step 2: Convert to fraction form
   10,009.86/15,018.03 = 7,048.50/x
3. Step 3: Cross multiply
   10,009.86x = 15,018.03 × 7,048.50
4. Step 4: Simplify right side
   10,009.86x = 105,854,584.46
5. Step 5: Solve for x
   x = 105,854,584.46/10,009.86
6. Step 6: Final answer
   x = 10,575.03