Finding the Fourth Proportional to 10,648.42, 15,971.73 and 4,804.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,648.42 : 15,971.73 = 4,804.90 : x
2. Step 2: Convert to fraction form
   10,648.42/15,971.73 = 4,804.90/x
3. Step 3: Cross multiply
   10,648.42x = 15,971.73 × 4,804.90
4. Step 4: Simplify right side
   10,648.42x = 76,742,565.48
5. Step 5: Solve for x
   x = 76,742,565.48/10,648.42
6. Step 6: Final answer
   x = 7,206.94