Finding the Fourth Proportional to 78,821.54, 108,774 and 43,012.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,821.54 : 108,774 = 43,012.34 : x
2. Step 2: Convert to fraction form
   78,821.54/108,774 = 43,012.34/x
3. Step 3: Cross multiply
   78,821.54x = 108,774 × 43,012.34
4. Step 4: Simplify right side
   78,821.54x = 4,678,624,271.16
5. Step 5: Solve for x
   x = 4,678,624,271.16/78,821.54
6. Step 6: Final answer
   x = 59,357.18