Finding the Fourth Proportional to 10,017.86, 15,030.36 and 4,470.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,017.86 : 15,030.36 = 4,470.72 : x
2. Step 2: Convert to fraction form
   10,017.86/15,030.36 = 4,470.72/x
3. Step 3: Cross multiply
   10,017.86x = 15,030.36 × 4,470.72
4. Step 4: Simplify right side
   10,017.86x = 67,196,531.06
5. Step 5: Solve for x
   x = 67,196,531.06/10,017.86
6. Step 6: Final answer
   x = 6,707.67