Finding the Fourth Proportional to 23,581.59, 32,543.28 and 12,971.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,581.59 : 32,543.28 = 12,971.91 : x
2. Step 2: Convert to fraction form
   23,581.59/32,543.28 = 12,971.91/x
3. Step 3: Cross multiply
   23,581.59x = 32,543.28 × 12,971.91
4. Step 4: Simplify right side
   23,581.59x = 422,148,499.26
5. Step 5: Solve for x
   x = 422,148,499.26/23,581.59
6. Step 6: Final answer
   x = 17,901.61