Finding the Fourth Proportional to 78,957.18, 118,463.72 and 49,340.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,957.18 : 118,463.72 = 49,340.34 : x
2. Step 2: Convert to fraction form
   78,957.18/118,463.72 = 49,340.34/x
3. Step 3: Cross multiply
   78,957.18x = 118,463.72 × 49,340.34
4. Step 4: Simplify right side
   78,957.18x = 5,845,039,975.76
5. Step 5: Solve for x
   x = 5,845,039,975.76/78,957.18
6. Step 6: Final answer
   x = 74,027.97