Finding the Fourth Proportional to 23,602.16, 32,570.76 and 12,991.52

Step by Step Solution

1. Step 1: Write the proportion equation
   23,602.16 : 32,570.76 = 12,991.52 : x
2. Step 2: Convert to fraction form
   23,602.16/32,570.76 = 12,991.52/x
3. Step 3: Cross multiply
   23,602.16x = 32,570.76 × 12,991.52
4. Step 4: Simplify right side
   23,602.16x = 423,143,679.96
5. Step 5: Solve for x
   x = 423,143,679.96/23,602.16
6. Step 6: Final answer
   x = 17,928.18