Finding the Fourth Proportional to 23,088.91, 31,858.65 and 13,654.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,088.91 : 31,858.65 = 13,654.03 : x
2. Step 2: Convert to fraction form
   23,088.91/31,858.65 = 13,654.03/x
3. Step 3: Cross multiply
   23,088.91x = 31,858.65 × 13,654.03
4. Step 4: Simplify right side
   23,088.91x = 434,998,962.86
5. Step 5: Solve for x
   x = 434,998,962.86/23,088.91
6. Step 6: Final answer
   x = 18,840.17