Finding the Fourth Proportional to 39,211.78, 58,784.59 and 17,008.42

Step by Step Solution

1. Step 1: Write the proportion equation
   39,211.78 : 58,784.59 = 17,008.42 : x
2. Step 2: Convert to fraction form
   39,211.78/58,784.59 = 17,008.42/x
3. Step 3: Cross multiply
   39,211.78x = 58,784.59 × 17,008.42
4. Step 4: Simplify right side
   39,211.78x = 999,832,996.25
5. Step 5: Solve for x
   x = 999,832,996.25/39,211.78
6. Step 6: Final answer
   x = 25,498.28