Finding the Fourth Proportional to 30,492.91, 42,065.49 and 19,156.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,492.91 : 42,065.49 = 19,156.69 : x
2. Step 2: Convert to fraction form
   30,492.91/42,065.49 = 19,156.69/x
3. Step 3: Cross multiply
   30,492.91x = 42,065.49 × 19,156.69
4. Step 4: Simplify right side
   30,492.91x = 805,835,551.63
5. Step 5: Solve for x
   x = 805,835,551.63/30,492.91
6. Step 6: Final answer
   x = 26,426.98