Finding the Fourth Proportional to 143,174.02, 197,679 and 89,483.18

Step by Step Solution

1. Step 1: Write the proportion equation
   143,174.02 : 197,679 = 89,483.18 : x
2. Step 2: Convert to fraction form
   143,174.02/197,679 = 89,483.18/x
3. Step 3: Cross multiply
   143,174.02x = 197,679 × 89,483.18
4. Step 4: Simplify right side
   143,174.02x = 17,688,945,539.22
5. Step 5: Solve for x
   x = 17,688,945,539.22/143,174.02
6. Step 6: Final answer
   x = 123,548.57