Finding the Fourth Proportional to 7,521.86, 10,382.89 and 4,378.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,521.86 : 10,382.89 = 4,378.05 : x
2. Step 2: Convert to fraction form
   7,521.86/10,382.89 = 4,378.05/x
3. Step 3: Cross multiply
   7,521.86x = 10,382.89 × 4,378.05
4. Step 4: Simplify right side
   7,521.86x = 45,456,802.02
5. Step 5: Solve for x
   x = 45,456,802.02/7,521.86
6. Step 6: Final answer
   x = 6,043.29