Finding the Fourth Proportional to 10,570.60, 14,582.55 and 7,428.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,570.60 : 14,582.55 = 7,428.61 : x
2. Step 2: Convert to fraction form
   10,570.60/14,582.55 = 7,428.61/x
3. Step 3: Cross multiply
   10,570.60x = 14,582.55 × 7,428.61
4. Step 4: Simplify right side
   10,570.60x = 108,328,076.76
5. Step 5: Solve for x
   x = 108,328,076.76/10,570.60
6. Step 6: Final answer
   x = 10,248.05