Finding the Fourth Proportional to 14,152.59, 19,530.72 and 7,779.51

Step by Step Solution

1. Step 1: Write the proportion equation
   14,152.59 : 19,530.72 = 7,779.51 : x
2. Step 2: Convert to fraction form
   14,152.59/19,530.72 = 7,779.51/x
3. Step 3: Cross multiply
   14,152.59x = 19,530.72 × 7,779.51
4. Step 4: Simplify right side
   14,152.59x = 151,939,431.55
5. Step 5: Solve for x
   x = 151,939,431.55/14,152.59
6. Step 6: Final answer
   x = 10,735.80