Finding the Fourth Proportional to 23,599.98, 32,567.72 and 12,989.39

Step by Step Solution

1. Step 1: Write the proportion equation
   23,599.98 : 32,567.72 = 12,989.39 : x
2. Step 2: Convert to fraction form
   23,599.98/32,567.72 = 12,989.39/x
3. Step 3: Cross multiply
   23,599.98x = 32,567.72 × 12,989.39
4. Step 4: Simplify right side
   23,599.98x = 423,034,588.71
5. Step 5: Solve for x
   x = 423,034,588.71/23,599.98
6. Step 6: Final answer
   x = 17,925.21