Finding the Fourth Proportional to 14,068.62, 19,413.72 and 7,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,068.62 : 19,413.72 = 7,780.50 : x
2. Step 2: Convert to fraction form
   14,068.62/19,413.72 = 7,780.50/x
3. Step 3: Cross multiply
   14,068.62x = 19,413.72 × 7,780.50
4. Step 4: Simplify right side
   14,068.62x = 151,048,448.46
5. Step 5: Solve for x
   x = 151,048,448.46/14,068.62
6. Step 6: Final answer
   x = 10,736.55