Finding the Fourth Proportional to 23,641.60, 32,621.89 and 13,570.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,641.60 : 32,621.89 = 13,570.42 : x
2. Step 2: Convert to fraction form
   23,641.60/32,621.89 = 13,570.42/x
3. Step 3: Cross multiply
   23,641.60x = 32,621.89 × 13,570.42
4. Step 4: Simplify right side
   23,641.60x = 442,692,551.46
5. Step 5: Solve for x
   x = 442,692,551.46/23,641.60
6. Step 6: Final answer
   x = 18,725.16