Finding the Fourth Proportional to 78,015, 107,662.32 and 46,172.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,015 : 107,662.32 = 46,172.28 : x
2. Step 2: Convert to fraction form
   78,015/107,662.32 = 46,172.28/x
3. Step 3: Cross multiply
   78,015x = 107,662.32 × 46,172.28
4. Step 4: Simplify right side
   78,015x = 4,971,014,784.49
5. Step 5: Solve for x
   x = 4,971,014,784.49/78,015
6. Step 6: Final answer
   x = 63,718.71