Finding the Fourth Proportional to 78,522.72, 117,803.52 and 36,960

Step by Step Solution

1. Step 1: Write the proportion equation
   78,522.72 : 117,803.52 = 36,960 : x
2. Step 2: Convert to fraction form
   78,522.72/117,803.52 = 36,960/x
3. Step 3: Cross multiply
   78,522.72x = 117,803.52 × 36,960
4. Step 4: Simplify right side
   78,522.72x = 4,354,018,099.20
5. Step 5: Solve for x
   x = 4,354,018,099.20/78,522.72
6. Step 6: Final answer
   x = 55,449.15