Finding the Fourth Proportional to 23,030.37, 31,784.49 and 12,961.26

Step by Step Solution

1. Step 1: Write the proportion equation
   23,030.37 : 31,784.49 = 12,961.26 : x
2. Step 2: Convert to fraction form
   23,030.37/31,784.49 = 12,961.26/x
3. Step 3: Cross multiply
   23,030.37x = 31,784.49 × 12,961.26
4. Step 4: Simplify right side
   23,030.37x = 411,967,038.86
5. Step 5: Solve for x
   x = 411,967,038.86/23,030.37
6. Step 6: Final answer
   x = 17,887.99