Finding the Fourth Proportional to 10,801.79, 14,900.78 and 7,438.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,801.79 : 14,900.78 = 7,438.77 : x
2. Step 2: Convert to fraction form
   10,801.79/14,900.78 = 7,438.77/x
3. Step 3: Cross multiply
   10,801.79x = 14,900.78 × 7,438.77
4. Step 4: Simplify right side
   10,801.79x = 110,843,438.05
5. Step 5: Solve for x
   x = 110,843,438.05/10,801.79
6. Step 6: Final answer
   x = 10,261.59