Finding the Fourth Proportional to 12,468.42, 18,705.18 and 5,072.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,468.42 : 18,705.18 = 5,072.82 : x
2. Step 2: Convert to fraction form
   12,468.42/18,705.18 = 5,072.82/x
3. Step 3: Cross multiply
   12,468.42x = 18,705.18 × 5,072.82
4. Step 4: Simplify right side
   12,468.42x = 94,888,011.21
5. Step 5: Solve for x
   x = 94,888,011.21/12,468.42
6. Step 6: Final answer
   x = 7,610.27