Finding the Fourth Proportional to 23,430.79, 32,335.29 and 13,360.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,430.79 : 32,335.29 = 13,360.72 : x
2. Step 2: Convert to fraction form
   23,430.79/32,335.29 = 13,360.72/x
3. Step 3: Cross multiply
   23,430.79x = 32,335.29 × 13,360.72
4. Step 4: Simplify right side
   23,430.79x = 432,022,755.81
5. Step 5: Solve for x
   x = 432,022,755.81/23,430.79
6. Step 6: Final answer
   x = 18,438.25