Finding the Fourth Proportional to 221,097.46, 331,564.59 and 78,904.69

Step by Step Solution

1. Step 1: Write the proportion equation
   221,097.46 : 331,564.59 = 78,904.69 : x
2. Step 2: Convert to fraction form
   221,097.46/331,564.59 = 78,904.69/x
3. Step 3: Cross multiply
   221,097.46x = 331,564.59 × 78,904.69
4. Step 4: Simplify right side
   221,097.46x = 26,162,001,188.93
5. Step 5: Solve for x
   x = 26,162,001,188.93/221,097.46
6. Step 6: Final answer
   x = 118,327.91