Finding the Fourth Proportional to 25,844.72, 35,669.61 and 15,779.03

Step by Step Solution

1. Step 1: Write the proportion equation
   25,844.72 : 35,669.61 = 15,779.03 : x
2. Step 2: Convert to fraction form
   25,844.72/35,669.61 = 15,779.03/x
3. Step 3: Cross multiply
   25,844.72x = 35,669.61 × 15,779.03
4. Step 4: Simplify right side
   25,844.72x = 562,831,667.93
5. Step 5: Solve for x
   x = 562,831,667.93/25,844.72
6. Step 6: Final answer
   x = 21,777.44