Finding the Fourth Proportional to 78,522.04, 117,821.98 and 31,136.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,522.04 : 117,821.98 = 31,136.12 : x
2. Step 2: Convert to fraction form
   78,522.04/117,821.98 = 31,136.12/x
3. Step 3: Cross multiply
   78,522.04x = 117,821.98 × 31,136.12
4. Step 4: Simplify right side
   78,522.04x = 3,668,519,077.66
5. Step 5: Solve for x
   x = 3,668,519,077.66/78,522.04
6. Step 6: Final answer
   x = 46,719.61