Finding the Fourth Proportional to 12,755.56, 19,123.02 and 3,985.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,755.56 : 19,123.02 = 3,985.96 : x
2. Step 2: Convert to fraction form
   12,755.56/19,123.02 = 3,985.96/x
3. Step 3: Cross multiply
   12,755.56x = 19,123.02 × 3,985.96
4. Step 4: Simplify right side
   12,755.56x = 76,223,592.80
5. Step 5: Solve for x
   x = 76,223,592.80/12,755.56
6. Step 6: Final answer
   x = 5,975.72