Finding the Fourth Proportional to 23,151.32, 31,947.15 and 13,591.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,151.32 : 31,947.15 = 13,591.60 : x
2. Step 2: Convert to fraction form
   23,151.32/31,947.15 = 13,591.60/x
3. Step 3: Cross multiply
   23,151.32x = 31,947.15 × 13,591.60
4. Step 4: Simplify right side
   23,151.32x = 434,212,804.07
5. Step 5: Solve for x
   x = 434,212,804.07/23,151.32
6. Step 6: Final answer
   x = 18,755.43