Finding the Fourth Proportional to 10,388.15, 15,591.03 and 4,152.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388.15 : 15,591.03 = 4,152.56 : x
2. Step 2: Convert to fraction form
   10,388.15/15,591.03 = 4,152.56/x
3. Step 3: Cross multiply
   10,388.15x = 15,591.03 × 4,152.56
4. Step 4: Simplify right side
   10,388.15x = 64,742,666.77
5. Step 5: Solve for x
   x = 64,742,666.77/10,388.15
6. Step 6: Final answer
   x = 6,232.36