Finding the Fourth Proportional to 13,757.88, 18,985.89 and 7,470.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,757.88 : 18,985.89 = 7,470.25 : x
2. Step 2: Convert to fraction form
   13,757.88/18,985.89 = 7,470.25/x
3. Step 3: Cross multiply
   13,757.88x = 18,985.89 × 7,470.25
4. Step 4: Simplify right side
   13,757.88x = 141,829,344.77
5. Step 5: Solve for x
   x = 141,829,344.77/13,757.88
6. Step 6: Final answer
   x = 10,308.95