Finding the Fourth Proportional to 9,131.08, 12,600.90 and 5,775.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.08 : 12,600.90 = 5,775.34 : x
2. Step 2: Convert to fraction form
   9,131.08/12,600.90 = 5,775.34/x
3. Step 3: Cross multiply
   9,131.08x = 12,600.90 × 5,775.34
4. Step 4: Simplify right side
   9,131.08x = 72,774,481.81
5. Step 5: Solve for x
   x = 72,774,481.81/9,131.08
6. Step 6: Final answer
   x = 7,969.98