Finding the Fourth Proportional to 9,905.56, 14,871.54 and 5,748.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,905.56 : 14,871.54 = 5,748.55 : x
2. Step 2: Convert to fraction form
   9,905.56/14,871.54 = 5,748.55/x
3. Step 3: Cross multiply
   9,905.56x = 14,871.54 × 5,748.55
4. Step 4: Simplify right side
   9,905.56x = 85,489,787.51
5. Step 5: Solve for x
   x = 85,489,787.51/9,905.56
6. Step 6: Final answer
   x = 8,630.49