Finding the Fourth Proportional to 25,047.50, 37,584.21 and 12,735.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,047.50 : 37,584.21 = 12,735.50 : x
2. Step 2: Convert to fraction form
   25,047.50/37,584.21 = 12,735.50/x
3. Step 3: Cross multiply
   25,047.50x = 37,584.21 × 12,735.50
4. Step 4: Simplify right side
   25,047.50x = 478,653,706.46
5. Step 5: Solve for x
   x = 478,653,706.46/25,047.50
6. Step 6: Final answer
   x = 19,109.84