Finding the Fourth Proportional to 78,675.18, 108,563.46 and 46,839.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,675.18 : 108,563.46 = 46,839.72 : x
2. Step 2: Convert to fraction form
   78,675.18/108,563.46 = 46,839.72/x
3. Step 3: Cross multiply
   78,675.18x = 108,563.46 × 46,839.72
4. Step 4: Simplify right side
   78,675.18x = 5,085,082,068.63
5. Step 5: Solve for x
   x = 5,085,082,068.63/78,675.18
6. Step 6: Final answer
   x = 64,633.88