Finding the Fourth Proportional to 13,061.95, 19,581.35 and 5,663.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.95 : 19,581.35 = 5,663.88 : x
2. Step 2: Convert to fraction form
   13,061.95/19,581.35 = 5,663.88/x
3. Step 3: Cross multiply
   13,061.95x = 19,581.35 × 5,663.88
4. Step 4: Simplify right side
   13,061.95x = 110,906,388.32
5. Step 5: Solve for x
   x = 110,906,388.32/13,061.95
6. Step 6: Final answer
   x = 8,490.80