Finding the Fourth Proportional to 12,994.32, 19,492.86 and 4,227.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994.32 : 19,492.86 = 4,227.18 : x
2. Step 2: Convert to fraction form
   12,994.32/19,492.86 = 4,227.18/x
3. Step 3: Cross multiply
   12,994.32x = 19,492.86 × 4,227.18
4. Step 4: Simplify right side
   12,994.32x = 82,399,827.93
5. Step 5: Solve for x
   x = 82,399,827.93/12,994.32
6. Step 6: Final answer
   x = 6,341.22