Finding the Fourth Proportional to 19,109.08, 28,664.89 and 5,068.91

Step by Step Solution

1. Step 1: Write the proportion equation
   19,109.08 : 28,664.89 = 5,068.91 : x
2. Step 2: Convert to fraction form
   19,109.08/28,664.89 = 5,068.91/x
3. Step 3: Cross multiply
   19,109.08x = 28,664.89 × 5,068.91
4. Step 4: Simplify right side
   19,109.08x = 145,299,806.56
5. Step 5: Solve for x
   x = 145,299,806.56/19,109.08
6. Step 6: Final answer
   x = 7,603.70