Finding the Fourth Proportional to 13,062.91, 19,624.89 and 12,354.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,062.91 : 19,624.89 = 12,354.86 : x
2. Step 2: Convert to fraction form
   13,062.91/19,624.89 = 12,354.86/x
3. Step 3: Cross multiply
   13,062.91x = 19,624.89 × 12,354.86
4. Step 4: Simplify right side
   13,062.91x = 242,462,842.06
5. Step 5: Solve for x
   x = 242,462,842.06/13,062.91
6. Step 6: Final answer
   x = 18,561.17