Finding the Fourth Proportional to 371,784.07, 513,060.76 and 210,669.83

Step by Step Solution

1. Step 1: Write the proportion equation
   371,784.07 : 513,060.76 = 210,669.83 : x
2. Step 2: Convert to fraction form
   371,784.07/513,060.76 = 210,669.83/x
3. Step 3: Cross multiply
   371,784.07x = 513,060.76 × 210,669.83
4. Step 4: Simplify right side
   371,784.07x = 108,086,419,996.89
5. Step 5: Solve for x
   x = 108,086,419,996.89/371,784.07
6. Step 6: Final answer
   x = 290,723.65