Finding the Fourth Proportional to 4,072.72, 6,109.06 and 3,460.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,072.72 : 6,109.06 = 3,460.72 : x
2. Step 2: Convert to fraction form
   4,072.72/6,109.06 = 3,460.72/x
3. Step 3: Cross multiply
   4,072.72x = 6,109.06 × 3,460.72
4. Step 4: Simplify right side
   4,072.72x = 21,141,746.12
5. Step 5: Solve for x
   x = 21,141,746.12/4,072.72
6. Step 6: Final answer
   x = 5,191.06