Finding the Fourth Proportional to 140,631.86, 194,071.28 and 76,101.05

Step by Step Solution

1. Step 1: Write the proportion equation
   140,631.86 : 194,071.28 = 76,101.05 : x
2. Step 2: Convert to fraction form
   140,631.86/194,071.28 = 76,101.05/x
3. Step 3: Cross multiply
   140,631.86x = 194,071.28 × 76,101.05
4. Step 4: Simplify right side
   140,631.86x = 14,769,028,287.52
5. Step 5: Solve for x
   x = 14,769,028,287.52/140,631.86
6. Step 6: Final answer
   x = 105,019.08