Finding the Fourth Proportional to 23,500.05, 32,430.72 and 13,430.13

Step by Step Solution

1. Step 1: Write the proportion equation
   23,500.05 : 32,430.72 = 13,430.13 : x
2. Step 2: Convert to fraction form
   23,500.05/32,430.72 = 13,430.13/x
3. Step 3: Cross multiply
   23,500.05x = 32,430.72 × 13,430.13
4. Step 4: Simplify right side
   23,500.05x = 435,548,785.59
5. Step 5: Solve for x
   x = 435,548,785.59/23,500.05
6. Step 6: Final answer
   x = 18,533.95