Finding the Fourth Proportional to 13,010.78, 19,499.82 and 5,606.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,010.78 : 19,499.82 = 5,606.57 : x
2. Step 2: Convert to fraction form
   13,010.78/19,499.82 = 5,606.57/x
3. Step 3: Cross multiply
   13,010.78x = 19,499.82 × 5,606.57
4. Step 4: Simplify right side
   13,010.78x = 109,327,008.32
5. Step 5: Solve for x
   x = 109,327,008.32/13,010.78
6. Step 6: Final answer
   x = 8,402.81