Finding the Fourth Proportional to 23,898.76, 32,980.50 and 13,288.84

Step by Step Solution

1. Step 1: Write the proportion equation
   23,898.76 : 32,980.50 = 13,288.84 : x
2. Step 2: Convert to fraction form
   23,898.76/32,980.50 = 13,288.84/x
3. Step 3: Cross multiply
   23,898.76x = 32,980.50 × 13,288.84
4. Step 4: Simplify right side
   23,898.76x = 438,272,587.62
5. Step 5: Solve for x
   x = 438,272,587.62/23,898.76
6. Step 6: Final answer
   x = 18,338.72