Finding the Fourth Proportional to 13,085.40, 19,633.31 and 4,765.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,085.40 : 19,633.31 = 4,765.98 : x
2. Step 2: Convert to fraction form
   13,085.40/19,633.31 = 4,765.98/x
3. Step 3: Cross multiply
   13,085.40x = 19,633.31 × 4,765.98
4. Step 4: Simplify right side
   13,085.40x = 93,571,962.79
5. Step 5: Solve for x
   x = 93,571,962.79/13,085.40
6. Step 6: Final answer
   x = 7,150.87