Finding the Fourth Proportional to 5,185.98, 7,784.01 and 4,905.03

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.98 : 7,784.01 = 4,905.03 : x
2. Step 2: Convert to fraction form
   5,185.98/7,784.01 = 4,905.03/x
3. Step 3: Cross multiply
   5,185.98x = 7,784.01 × 4,905.03
4. Step 4: Simplify right side
   5,185.98x = 38,180,802.57
5. Step 5: Solve for x
   x = 38,180,802.57/5,185.98
6. Step 6: Final answer
   x = 7,362.31