Finding the Fourth Proportional to 13,123.01, 18,109.76 and 7,534.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.01 : 18,109.76 = 7,534.01 : x
2. Step 2: Convert to fraction form
   13,123.01/18,109.76 = 7,534.01/x
3. Step 3: Cross multiply
   13,123.01x = 18,109.76 × 7,534.01
4. Step 4: Simplify right side
   13,123.01x = 136,438,984.72
5. Step 5: Solve for x
   x = 136,438,984.72/13,123.01
6. Step 6: Final answer
   x = 10,396.93