Finding the Fourth Proportional to 23,060.16, 31,820.96 and 13,501.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,060.16 : 31,820.96 = 13,501.20 : x
2. Step 2: Convert to fraction form
   23,060.16/31,820.96 = 13,501.20/x
3. Step 3: Cross multiply
   23,060.16x = 31,820.96 × 13,501.20
4. Step 4: Simplify right side
   23,060.16x = 429,621,145.15
5. Step 5: Solve for x
   x = 429,621,145.15/23,060.16
6. Step 6: Final answer
   x = 18,630.45