Finding the Fourth Proportional to 71,870.57, 107,797.59 and 19,275.92

Step by Step Solution

1. Step 1: Write the proportion equation
   71,870.57 : 107,797.59 = 19,275.92 : x
2. Step 2: Convert to fraction form
   71,870.57/107,797.59 = 19,275.92/x
3. Step 3: Cross multiply
   71,870.57x = 107,797.59 × 19,275.92
4. Step 4: Simplify right side
   71,870.57x = 2,077,897,182.04
5. Step 5: Solve for x
   x = 2,077,897,182.04/71,870.57
6. Step 6: Final answer
   x = 28,911.66