Finding the Fourth Proportional to 10,258.47, 14,156.28 and 5,783.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,258.47 : 14,156.28 = 5,783.13 : x
2. Step 2: Convert to fraction form
   10,258.47/14,156.28 = 5,783.13/x
3. Step 3: Cross multiply
   10,258.47x = 14,156.28 × 5,783.13
4. Step 4: Simplify right side
   10,258.47x = 81,867,607.56
5. Step 5: Solve for x
   x = 81,867,607.56/10,258.47
6. Step 6: Final answer
   x = 7,980.49