Finding the Fourth Proportional to 10,436.58, 15,643.53 and 4,886.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.58 : 15,643.53 = 4,886.46 : x
2. Step 2: Convert to fraction form
   10,436.58/15,643.53 = 4,886.46/x
3. Step 3: Cross multiply
   10,436.58x = 15,643.53 × 4,886.46
4. Step 4: Simplify right side
   10,436.58x = 76,441,483.60
5. Step 5: Solve for x
   x = 76,441,483.60/10,436.58
6. Step 6: Final answer
   x = 7,324.38