Finding the Fourth Proportional to 116,204.21, 160,377.90 and 65,219.98

Step by Step Solution

1. Step 1: Write the proportion equation
   116,204.21 : 160,377.90 = 65,219.98 : x
2. Step 2: Convert to fraction form
   116,204.21/160,377.90 = 65,219.98/x
3. Step 3: Cross multiply
   116,204.21x = 160,377.90 × 65,219.98
4. Step 4: Simplify right side
   116,204.21x = 10,459,843,029.50
5. Step 5: Solve for x
   x = 10,459,843,029.50/116,204.21
6. Step 6: Final answer
   x = 90,012.60