Finding the Fourth Proportional to 13,109.52, 19,659.06 and 4,787.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.52 : 19,659.06 = 4,787.64 : x
2. Step 2: Convert to fraction form
   13,109.52/19,659.06 = 4,787.64/x
3. Step 3: Cross multiply
   13,109.52x = 19,659.06 × 4,787.64
4. Step 4: Simplify right side
   13,109.52x = 94,120,502.02
5. Step 5: Solve for x
   x = 94,120,502.02/13,109.52
6. Step 6: Final answer
   x = 7,179.55