Finding the Fourth Proportional to 13,109.84, 19,642.86 and 5,703.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.84 : 19,642.86 = 5,703.20 : x
2. Step 2: Convert to fraction form
   13,109.84/19,642.86 = 5,703.20/x
3. Step 3: Cross multiply
   13,109.84x = 19,642.86 × 5,703.20
4. Step 4: Simplify right side
   13,109.84x = 112,027,159.15
5. Step 5: Solve for x
   x = 112,027,159.15/13,109.84
6. Step 6: Final answer
   x = 8,545.27