Finding the Fourth Proportional to 78,495.48, 108,318.24 and 42,684.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,495.48 : 108,318.24 = 42,684.84 : x
2. Step 2: Convert to fraction form
   78,495.48/108,318.24 = 42,684.84/x
3. Step 3: Cross multiply
   78,495.48x = 108,318.24 × 42,684.84
4. Step 4: Simplify right side
   78,495.48x = 4,623,546,743.48
5. Step 5: Solve for x
   x = 4,623,546,743.48/78,495.48
6. Step 6: Final answer
   x = 58,902.08