Finding the Fourth Proportional to 12,875.60, 19,308.80 and 5,849.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,875.60 : 19,308.80 = 5,849.72 : x
2. Step 2: Convert to fraction form
   12,875.60/19,308.80 = 5,849.72/x
3. Step 3: Cross multiply
   12,875.60x = 19,308.80 × 5,849.72
4. Step 4: Simplify right side
   12,875.60x = 112,951,136.43
5. Step 5: Solve for x
   x = 112,951,136.43/12,875.60
6. Step 6: Final answer
   x = 8,772.50