Finding the Fourth Proportional to 14,158.95, 19,539.57 and 7,785.81

Step by Step Solution

1. Step 1: Write the proportion equation
   14,158.95 : 19,539.57 = 7,785.81 : x
2. Step 2: Convert to fraction form
   14,158.95/19,539.57 = 7,785.81/x
3. Step 3: Cross multiply
   14,158.95x = 19,539.57 × 7,785.81
4. Step 4: Simplify right side
   14,158.95x = 152,131,379.50
5. Step 5: Solve for x
   x = 152,131,379.50/14,158.95
6. Step 6: Final answer
   x = 10,744.54