Finding the Fourth Proportional to 9,113.31, 13,672.53 and 3,490.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,113.31 : 13,672.53 = 3,490.29 : x
2. Step 2: Convert to fraction form
   9,113.31/13,672.53 = 3,490.29/x
3. Step 3: Cross multiply
   9,113.31x = 13,672.53 × 3,490.29
4. Step 4: Simplify right side
   9,113.31x = 47,721,094.73
5. Step 5: Solve for x
   x = 47,721,094.73/9,113.31
6. Step 6: Final answer
   x = 5,236.42