Finding the Fourth Proportional to 39,784.78, 59,667.90 and 17,586.10

Step by Step Solution

1. Step 1: Write the proportion equation
   39,784.78 : 59,667.90 = 17,586.10 : x
2. Step 2: Convert to fraction form
   39,784.78/59,667.90 = 17,586.10/x
3. Step 3: Cross multiply
   39,784.78x = 59,667.90 × 17,586.10
4. Step 4: Simplify right side
   39,784.78x = 1,049,325,656.19
5. Step 5: Solve for x
   x = 1,049,325,656.19/39,784.78
6. Step 6: Final answer
   x = 26,375.05