Finding the Fourth Proportional to 10,388.31, 15,588.71 and 3,724.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388.31 : 15,588.71 = 3,724.29 : x
2. Step 2: Convert to fraction form
   10,388.31/15,588.71 = 3,724.29/x
3. Step 3: Cross multiply
   10,388.31x = 15,588.71 × 3,724.29
4. Step 4: Simplify right side
   10,388.31x = 58,056,876.77
5. Step 5: Solve for x
   x = 58,056,876.77/10,388.31
6. Step 6: Final answer
   x = 5,588.67