Finding the Fourth Proportional to 78,446.24, 108,256.32 and 42,636.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,446.24 : 108,256.32 = 42,636.56 : x
2. Step 2: Convert to fraction form
   78,446.24/108,256.32 = 42,636.56/x
3. Step 3: Cross multiply
   78,446.24x = 108,256.32 × 42,636.56
4. Step 4: Simplify right side
   78,446.24x = 4,615,677,083.06
5. Step 5: Solve for x
   x = 4,615,677,083.06/78,446.24
6. Step 6: Final answer
   x = 58,838.73