Finding the Fourth Proportional to 78,499.14, 108,339.24 and 46,685.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,499.14 : 108,339.24 = 46,685.58 : x
2. Step 2: Convert to fraction form
   78,499.14/108,339.24 = 46,685.58/x
3. Step 3: Cross multiply
   78,499.14x = 108,339.24 × 46,685.58
4. Step 4: Simplify right side
   78,499.14x = 5,057,880,256.16
5. Step 5: Solve for x
   x = 5,057,880,256.16/78,499.14
6. Step 6: Final answer
   x = 64,432.30