Finding the Fourth Proportional to 16,670.88, 25,003.80 and 4,985.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,670.88 : 25,003.80 = 4,985.10 : x
2. Step 2: Convert to fraction form
   16,670.88/25,003.80 = 4,985.10/x
3. Step 3: Cross multiply
   16,670.88x = 25,003.80 × 4,985.10
4. Step 4: Simplify right side
   16,670.88x = 124,646,443.38
5. Step 5: Solve for x
   x = 124,646,443.38/16,670.88
6. Step 6: Final answer
   x = 7,476.90