Finding the Fourth Proportional to 19,759.92, 29,385.72 and 19,137.02

Step by Step Solution

1. Step 1: Write the proportion equation
   19,759.92 : 29,385.72 = 19,137.02 : x
2. Step 2: Convert to fraction form
   19,759.92/29,385.72 = 19,137.02/x
3. Step 3: Cross multiply
   19,759.92x = 29,385.72 × 19,137.02
4. Step 4: Simplify right side
   19,759.92x = 562,355,111.35
5. Step 5: Solve for x
   x = 562,355,111.35/19,759.92
6. Step 6: Final answer
   x = 28,459.38