Finding the Fourth Proportional to 4,939.61, 7,345.88 and 4,783.88

Step by Step Solution

1. Step 1: Write the proportion equation
   4,939.61 : 7,345.88 = 4,783.88 : x
2. Step 2: Convert to fraction form
   4,939.61/7,345.88 = 4,783.88/x
3. Step 3: Cross multiply
   4,939.61x = 7,345.88 × 4,783.88
4. Step 4: Simplify right side
   4,939.61x = 35,141,802.86
5. Step 5: Solve for x
   x = 35,141,802.86/4,939.61
6. Step 6: Final answer
   x = 7,114.29