Finding the Fourth Proportional to 13,103.76, 19,643.32 and 4,781.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.76 : 19,643.32 = 4,781.84 : x
2. Step 2: Convert to fraction form
   13,103.76/19,643.32 = 4,781.84/x
3. Step 3: Cross multiply
   13,103.76x = 19,643.32 × 4,781.84
4. Step 4: Simplify right side
   13,103.76x = 93,931,213.31
5. Step 5: Solve for x
   x = 93,931,213.31/13,103.76
6. Step 6: Final answer
   x = 7,168.26