Finding the Fourth Proportional to 12,995.50, 19,501.90 and 4,787.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,995.50 : 19,501.90 = 4,787.50 : x
2. Step 2: Convert to fraction form
   12,995.50/19,501.90 = 4,787.50/x
3. Step 3: Cross multiply
   12,995.50x = 19,501.90 × 4,787.50
4. Step 4: Simplify right side
   12,995.50x = 93,365,346.25
5. Step 5: Solve for x
   x = 93,365,346.25/12,995.50
6. Step 6: Final answer
   x = 7,184.44