Finding the Fourth Proportional to 10,445.52, 15,669.27 and 3,870.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,445.52 : 15,669.27 = 3,870.12 : x
2. Step 2: Convert to fraction form
   10,445.52/15,669.27 = 3,870.12/x
3. Step 3: Cross multiply
   10,445.52x = 15,669.27 × 3,870.12
4. Step 4: Simplify right side
   10,445.52x = 60,641,955.21
5. Step 5: Solve for x
   x = 60,641,955.21/10,445.52
6. Step 6: Final answer
   x = 5,805.55