Finding the Fourth Proportional to 221,009.74, 331,746.52 and 195,870.10

Step by Step Solution

1. Step 1: Write the proportion equation
   221,009.74 : 331,746.52 = 195,870.10 : x
2. Step 2: Convert to fraction form
   221,009.74/331,746.52 = 195,870.10/x
3. Step 3: Cross multiply
   221,009.74x = 331,746.52 × 195,870.10
4. Step 4: Simplify right side
   221,009.74x = 64,979,224,047.05
5. Step 5: Solve for x
   x = 64,979,224,047.05/221,009.74
6. Step 6: Final answer
   x = 294,010.68