Finding the Fourth Proportional to 139,932.34, 193,105.14 and 76,268.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,932.34 : 193,105.14 = 76,268.76 : x
2. Step 2: Convert to fraction form
   139,932.34/193,105.14 = 76,268.76/x
3. Step 3: Cross multiply
   139,932.34x = 193,105.14 × 76,268.76
4. Step 4: Simplify right side
   139,932.34x = 14,727,889,577.43
5. Step 5: Solve for x
   x = 14,727,889,577.43/139,932.34
6. Step 6: Final answer
   x = 105,250.08