Finding the Fourth Proportional to 39,100.79, 58,659.38 and 16,917.32

Step by Step Solution

1. Step 1: Write the proportion equation
   39,100.79 : 58,659.38 = 16,917.32 : x
2. Step 2: Convert to fraction form
   39,100.79/58,659.38 = 16,917.32/x
3. Step 3: Cross multiply
   39,100.79x = 58,659.38 × 16,917.32
4. Step 4: Simplify right side
   39,100.79x = 992,359,188.02
5. Step 5: Solve for x
   x = 992,359,188.02/39,100.79
6. Step 6: Final answer
   x = 25,379.52