Finding the Fourth Proportional to 10,015.25, 13,818.94 and 7,624.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,015.25 : 13,818.94 = 7,624.74 : x
2. Step 2: Convert to fraction form
   10,015.25/13,818.94 = 7,624.74/x
3. Step 3: Cross multiply
   10,015.25x = 13,818.94 × 7,624.74
4. Step 4: Simplify right side
   10,015.25x = 105,365,824.58
5. Step 5: Solve for x
   x = 105,365,824.58/10,015.25
6. Step 6: Final answer
   x = 10,520.54