Finding the Fourth Proportional to 181,931.72, 272,926.76 and 76,766.18

Step by Step Solution

1. Step 1: Write the proportion equation
   181,931.72 : 272,926.76 = 76,766.18 : x
2. Step 2: Convert to fraction form
   181,931.72/272,926.76 = 76,766.18/x
3. Step 3: Cross multiply
   181,931.72x = 272,926.76 × 76,766.18
4. Step 4: Simplify right side
   181,931.72x = 20,951,543,036.51
5. Step 5: Solve for x
   x = 20,951,543,036.51/181,931.72
6. Step 6: Final answer
   x = 115,161.58