Finding the Fourth Proportional to 6,051.31, 9,072.71 and 3,420.53

Step by Step Solution

1. Step 1: Write the proportion equation
   6,051.31 : 9,072.71 = 3,420.53 : x
2. Step 2: Convert to fraction form
   6,051.31/9,072.71 = 3,420.53/x
3. Step 3: Cross multiply
   6,051.31x = 9,072.71 × 3,420.53
4. Step 4: Simplify right side
   6,051.31x = 31,033,461.12
5. Step 5: Solve for x
   x = 31,033,461.12/6,051.31
6. Step 6: Final answer
   x = 5,128.39