Finding the Fourth Proportional to 14,071.76, 19,418.17 and 7,697.15

Step by Step Solution

1. Step 1: Write the proportion equation
   14,071.76 : 19,418.17 = 7,697.15 : x
2. Step 2: Convert to fraction form
   14,071.76/19,418.17 = 7,697.15/x
3. Step 3: Cross multiply
   14,071.76x = 19,418.17 × 7,697.15
4. Step 4: Simplify right side
   14,071.76x = 149,464,567.22
5. Step 5: Solve for x
   x = 149,464,567.22/14,071.76
6. Step 6: Final answer
   x = 10,621.60