Finding the Fourth Proportional to 31,038.12, 42,819.30 and 19,097.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,038.12 : 42,819.30 = 19,097.10 : x
2. Step 2: Convert to fraction form
   31,038.12/42,819.30 = 19,097.10/x
3. Step 3: Cross multiply
   31,038.12x = 42,819.30 × 19,097.10
4. Step 4: Simplify right side
   31,038.12x = 817,724,454.03
5. Step 5: Solve for x
   x = 817,724,454.03/31,038.12
6. Step 6: Final answer
   x = 26,345.81