Finding the Fourth Proportional to 78,492.24, 117,741.06 and 31,116.29

Step by Step Solution

1. Step 1: Write the proportion equation
   78,492.24 : 117,741.06 = 31,116.29 : x
2. Step 2: Convert to fraction form
   78,492.24/117,741.06 = 31,116.29/x
3. Step 3: Cross multiply
   78,492.24x = 117,741.06 × 31,116.29
4. Step 4: Simplify right side
   78,492.24x = 3,663,664,379.16
5. Step 5: Solve for x
   x = 3,663,664,379.16/78,492.24
6. Step 6: Final answer
   x = 46,675.50