Finding the Fourth Proportional to 14,155.85, 19,535.30 and 7,782.71

Step by Step Solution

1. Step 1: Write the proportion equation
   14,155.85 : 19,535.30 = 7,782.71 : x
2. Step 2: Convert to fraction form
   14,155.85/19,535.30 = 7,782.71/x
3. Step 3: Cross multiply
   14,155.85x = 19,535.30 × 7,782.71
4. Step 4: Simplify right side
   14,155.85x = 152,037,467.26
5. Step 5: Solve for x
   x = 152,037,467.26/14,155.85
6. Step 6: Final answer
   x = 10,740.26