Finding the Fourth Proportional to 333,105.35, 459,711.86 and 212,300.87

Step by Step Solution

1. Step 1: Write the proportion equation
   333,105.35 : 459,711.86 = 212,300.87 : x
2. Step 2: Convert to fraction form
   333,105.35/459,711.86 = 212,300.87/x
3. Step 3: Cross multiply
   333,105.35x = 459,711.86 × 212,300.87
4. Step 4: Simplify right side
   333,105.35x = 97,597,224,467.25
5. Step 5: Solve for x
   x = 97,597,224,467.25/333,105.35
6. Step 6: Final answer
   x = 292,992.07