Finding the Fourth Proportional to 70,623.27, 105,934.32 and 28,502.71

Step by Step Solution

1. Step 1: Write the proportion equation
   70,623.27 : 105,934.32 = 28,502.71 : x
2. Step 2: Convert to fraction form
   70,623.27/105,934.32 = 28,502.71/x
3. Step 3: Cross multiply
   70,623.27x = 105,934.32 × 28,502.71
4. Step 4: Simplify right side
   70,623.27x = 3,019,414,672.34
5. Step 5: Solve for x
   x = 3,019,414,672.34/70,623.27
6. Step 6: Final answer
   x = 42,753.82