Finding the Fourth Proportional to 139,904.56, 193,124.28 and 83,305

Step by Step Solution

1. Step 1: Write the proportion equation
   139,904.56 : 193,124.28 = 83,305 : x
2. Step 2: Convert to fraction form
   139,904.56/193,124.28 = 83,305/x
3. Step 3: Cross multiply
   139,904.56x = 193,124.28 × 83,305
4. Step 4: Simplify right side
   139,904.56x = 16,088,218,145.40
5. Step 5: Solve for x
   x = 16,088,218,145.40/139,904.56
6. Step 6: Final answer
   x = 114,994.24