Finding the Fourth Proportional to 149,112.29, 205,780.62 and 85,462.37

Step by Step Solution

1. Step 1: Write the proportion equation
   149,112.29 : 205,780.62 = 85,462.37 : x
2. Step 2: Convert to fraction form
   149,112.29/205,780.62 = 85,462.37/x
3. Step 3: Cross multiply
   149,112.29x = 205,780.62 × 85,462.37
4. Step 4: Simplify right side
   149,112.29x = 17,586,499,485.27
5. Step 5: Solve for x
   x = 17,586,499,485.27/149,112.29
6. Step 6: Final answer
   x = 117,941.31