Finding the Fourth Proportional to 12,784.76, 17,646.58 and 7,750.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,784.76 : 17,646.58 = 7,750.52 : x
2. Step 2: Convert to fraction form
   12,784.76/17,646.58 = 7,750.52/x
3. Step 3: Cross multiply
   12,784.76x = 17,646.58 × 7,750.52
4. Step 4: Simplify right side
   12,784.76x = 136,770,171.22
5. Step 5: Solve for x
   x = 136,770,171.22/12,784.76
6. Step 6: Final answer
   x = 10,697.91