Finding the Fourth Proportional to 139,974.18, 193,045.54 and 118,276.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,974.18 : 193,045.54 = 118,276.76 : x
2. Step 2: Convert to fraction form
   139,974.18/193,045.54 = 118,276.76/x
3. Step 3: Cross multiply
   139,974.18x = 193,045.54 × 118,276.76
4. Step 4: Simplify right side
   139,974.18x = 22,832,801,003.65
5. Step 5: Solve for x
   x = 22,832,801,003.65/139,974.18
6. Step 6: Final answer
   x = 163,121.52