Finding the Fourth Proportional to 10,833.75, 16,238.34 and 4,978.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,833.75 : 16,238.34 = 4,978.26 : x
2. Step 2: Convert to fraction form
   10,833.75/16,238.34 = 4,978.26/x
3. Step 3: Cross multiply
   10,833.75x = 16,238.34 × 4,978.26
4. Step 4: Simplify right side
   10,833.75x = 80,838,678.49
5. Step 5: Solve for x
   x = 80,838,678.49/10,833.75
6. Step 6: Final answer
   x = 7,461.74