Finding the Fourth Proportional to 23,030.52, 34,490.43 and 13,139.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,030.52 : 34,490.43 = 13,139.82 : x
2. Step 2: Convert to fraction form
   23,030.52/34,490.43 = 13,139.82/x
3. Step 3: Cross multiply
   23,030.52x = 34,490.43 × 13,139.82
4. Step 4: Simplify right side
   23,030.52x = 453,197,874.47
5. Step 5: Solve for x
   x = 453,197,874.47/23,030.52
6. Step 6: Final answer
   x = 19,678.14