Finding the Fourth Proportional to 213,088.98, 294,173.34 and 155,663.82

Step by Step Solution

1. Step 1: Write the proportion equation
   213,088.98 : 294,173.34 = 155,663.82 : x
2. Step 2: Convert to fraction form
   213,088.98/294,173.34 = 155,663.82/x
3. Step 3: Cross multiply
   213,088.98x = 294,173.34 × 155,663.82
4. Step 4: Simplify right side
   213,088.98x = 45,792,145,846.56
5. Step 5: Solve for x
   x = 45,792,145,846.56/213,088.98
6. Step 6: Final answer
   x = 214,896.83