Finding the Fourth Proportional to 104,003.34, 143,442.99 and 89,686.86

Step by Step Solution

1. Step 1: Write the proportion equation
   104,003.34 : 143,442.99 = 89,686.86 : x
2. Step 2: Convert to fraction form
   104,003.34/143,442.99 = 89,686.86/x
3. Step 3: Cross multiply
   104,003.34x = 143,442.99 × 89,686.86
4. Step 4: Simplify right side
   104,003.34x = 12,864,951,362.11
5. Step 5: Solve for x
   x = 12,864,951,362.11/104,003.34
6. Step 6: Final answer
   x = 123,697.48