Finding the Fourth Proportional to 23,381.86, 32,269.74 and 13,312.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,381.86 : 32,269.74 = 13,312.72 : x
2. Step 2: Convert to fraction form
   23,381.86/32,269.74 = 13,312.72/x
3. Step 3: Cross multiply
   23,381.86x = 32,269.74 × 13,312.72
4. Step 4: Simplify right side
   23,381.86x = 429,598,013.09
5. Step 5: Solve for x
   x = 429,598,013.09/23,381.86
6. Step 6: Final answer
   x = 18,373.13