Finding the Fourth Proportional to 22,599.32, 31,187.84 and 13,645.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,599.32 : 31,187.84 = 13,645.04 : x
2. Step 2: Convert to fraction form
   22,599.32/31,187.84 = 13,645.04/x
3. Step 3: Cross multiply
   22,599.32x = 31,187.84 × 13,645.04
4. Step 4: Simplify right side
   22,599.32x = 425,559,100.15
5. Step 5: Solve for x
   x = 425,559,100.15/22,599.32
6. Step 6: Final answer
   x = 18,830.62