Finding the Fourth Proportional to 7,156.86, 9,876.96 and 4,013.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,156.86 : 9,876.96 = 4,013.25 : x
2. Step 2: Convert to fraction form
   7,156.86/9,876.96 = 4,013.25/x
3. Step 3: Cross multiply
   7,156.86x = 9,876.96 × 4,013.25
4. Step 4: Simplify right side
   7,156.86x = 39,638,709.72
5. Step 5: Solve for x
   x = 39,638,709.72/7,156.86
6. Step 6: Final answer
   x = 5,538.56