Finding the Fourth Proportional to 13,434.58, 18,538.86 and 7,465.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,434.58 : 18,538.86 = 7,465.89 : x
2. Step 2: Convert to fraction form
   13,434.58/18,538.86 = 7,465.89/x
3. Step 3: Cross multiply
   13,434.58x = 18,538.86 × 7,465.89
4. Step 4: Simplify right side
   13,434.58x = 138,409,089.49
5. Step 5: Solve for x
   x = 138,409,089.49/13,434.58
6. Step 6: Final answer
   x = 10,302.45