Finding the Fourth Proportional to 13,091.52, 19,642.50 and 4,772.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,091.52 : 19,642.50 = 4,772.10 : x
2. Step 2: Convert to fraction form
   13,091.52/19,642.50 = 4,772.10/x
3. Step 3: Cross multiply
   13,091.52x = 19,642.50 × 4,772.10
4. Step 4: Simplify right side
   13,091.52x = 93,735,974.25
5. Step 5: Solve for x
   x = 93,735,974.25/13,091.52
6. Step 6: Final answer
   x = 7,160.05