Finding the Fourth Proportional to 14,153.59, 19,532.10 and 7,780.51

Step by Step Solution

1. Step 1: Write the proportion equation
   14,153.59 : 19,532.10 = 7,780.51 : x
2. Step 2: Convert to fraction form
   14,153.59/19,532.10 = 7,780.51/x
3. Step 3: Cross multiply
   14,153.59x = 19,532.10 × 7,780.51
4. Step 4: Simplify right side
   14,153.59x = 151,969,699.37
5. Step 5: Solve for x
   x = 151,969,699.37/14,153.59
6. Step 6: Final answer
   x = 10,737.18