Finding the Fourth Proportional to 209,513.08, 289,466.31 and 146,133.82

Step by Step Solution

1. Step 1: Write the proportion equation
   209,513.08 : 289,466.31 = 146,133.82 : x
2. Step 2: Convert to fraction form
   209,513.08/289,466.31 = 146,133.82/x
3. Step 3: Cross multiply
   209,513.08x = 289,466.31 × 146,133.82
4. Step 4: Simplify right side
   209,513.08x = 42,300,817,641.60
5. Step 5: Solve for x
   x = 42,300,817,641.60/209,513.08
6. Step 6: Final answer
   x = 201,900.61