Finding the Fourth Proportional to 289,075.89, 398,914.71 and 160,019.98

Step by Step Solution

1. Step 1: Write the proportion equation
   289,075.89 : 398,914.71 = 160,019.98 : x
2. Step 2: Convert to fraction form
   289,075.89/398,914.71 = 160,019.98/x
3. Step 3: Cross multiply
   289,075.89x = 398,914.71 × 160,019.98
4. Step 4: Simplify right side
   289,075.89x = 63,834,323,915.91
5. Step 5: Solve for x
   x = 63,834,323,915.91/289,075.89
6. Step 6: Final answer
   x = 220,822.03