Finding the Fourth Proportional to 12,755.69, 19,132.93 and 3,870.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,755.69 : 19,132.93 = 3,870.62 : x
2. Step 2: Convert to fraction form
   12,755.69/19,132.93 = 3,870.62/x
3. Step 3: Cross multiply
   12,755.69x = 19,132.93 × 3,870.62
4. Step 4: Simplify right side
   12,755.69x = 74,056,301.52
5. Step 5: Solve for x
   x = 74,056,301.52/12,755.69
6. Step 6: Final answer
   x = 5,805.75