Finding the Fourth Proportional to 78,280.58, 117,153.91 and 49,803.14

Step by Step Solution

1. Step 1: Write the proportion equation
   78,280.58 : 117,153.91 = 49,803.14 : x
2. Step 2: Convert to fraction form
   78,280.58/117,153.91 = 49,803.14/x
3. Step 3: Cross multiply
   78,280.58x = 117,153.91 × 49,803.14
4. Step 4: Simplify right side
   78,280.58x = 5,834,632,581.28
5. Step 5: Solve for x
   x = 5,834,632,581.28/78,280.58
6. Step 6: Final answer
   x = 74,534.87