Finding the Fourth Proportional to 13,076.05, 19,609.31 and 7,157.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,076.05 : 19,609.31 = 7,157.30 : x
2. Step 2: Convert to fraction form
   13,076.05/19,609.31 = 7,157.30/x
3. Step 3: Cross multiply
   13,076.05x = 19,609.31 × 7,157.30
4. Step 4: Simplify right side
   13,076.05x = 140,349,714.46
5. Step 5: Solve for x
   x = 140,349,714.46/13,076.05
6. Step 6: Final answer
   x = 10,733.35