Finding the Fourth Proportional to 12,784.84, 19,158.63 and 5,660.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,784.84 : 19,158.63 = 5,660.48 : x
2. Step 2: Convert to fraction form
   12,784.84/19,158.63 = 5,660.48/x
3. Step 3: Cross multiply
   12,784.84x = 19,158.63 × 5,660.48
4. Step 4: Simplify right side
   12,784.84x = 108,447,068.61
5. Step 5: Solve for x
   x = 108,447,068.61/12,784.84
6. Step 6: Final answer
   x = 8,482.48