Finding the Fourth Proportional to 16,781.18, 25,171.86 and 5,094.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,781.18 : 25,171.86 = 5,094.50 : x
2. Step 2: Convert to fraction form
   16,781.18/25,171.86 = 5,094.50/x
3. Step 3: Cross multiply
   16,781.18x = 25,171.86 × 5,094.50
4. Step 4: Simplify right side
   16,781.18x = 128,238,040.77
5. Step 5: Solve for x
   x = 128,238,040.77/16,781.18
6. Step 6: Final answer
   x = 7,641.78