Finding the Fourth Proportional to 221,014.76, 331,620.15 and 115,808.72

Step by Step Solution

1. Step 1: Write the proportion equation
   221,014.76 : 331,620.15 = 115,808.72 : x
2. Step 2: Convert to fraction form
   221,014.76/331,620.15 = 115,808.72/x
3. Step 3: Cross multiply
   221,014.76x = 331,620.15 × 115,808.72
4. Step 4: Simplify right side
   221,014.76x = 38,404,505,097.71
5. Step 5: Solve for x
   x = 38,404,505,097.71/221,014.76
6. Step 6: Final answer
   x = 173,764.44