Finding the Fourth Proportional to 12,870.37, 17,765.49 and 7,566.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.37 : 17,765.49 = 7,566.76 : x
2. Step 2: Convert to fraction form
   12,870.37/17,765.49 = 7,566.76/x
3. Step 3: Cross multiply
   12,870.37x = 17,765.49 × 7,566.76
4. Step 4: Simplify right side
   12,870.37x = 134,427,199.11
5. Step 5: Solve for x
   x = 134,427,199.11/12,870.37
6. Step 6: Final answer
   x = 10,444.70