Finding the Fourth Proportional to 78,315.16, 108,025.75 and 46,461.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,315.16 : 108,025.75 = 46,461.50 : x
2. Step 2: Convert to fraction form
   78,315.16/108,025.75 = 46,461.50/x
3. Step 3: Cross multiply
   78,315.16x = 108,025.75 × 46,461.50
4. Step 4: Simplify right side
   78,315.16x = 5,019,038,383.63
5. Step 5: Solve for x
   x = 5,019,038,383.63/78,315.16
6. Step 6: Final answer
   x = 64,087.70