Finding the Fourth Proportional to 12,881.64, 19,322.52 and 4,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,881.64 : 19,322.52 = 4,116.72 : x
2. Step 2: Convert to fraction form
   12,881.64/19,322.52 = 4,116.72/x
3. Step 3: Cross multiply
   12,881.64x = 19,322.52 × 4,116.72
4. Step 4: Simplify right side
   12,881.64x = 79,545,404.53
5. Step 5: Solve for x
   x = 79,545,404.53/12,881.64
6. Step 6: Final answer
   x = 6,175.10