Finding the Fourth Proportional to 149,111.29, 205,779.24 and 85,461.37

Step by Step Solution

1. Step 1: Write the proportion equation
   149,111.29 : 205,779.24 = 85,461.37 : x
2. Step 2: Convert to fraction form
   149,111.29/205,779.24 = 85,461.37/x
3. Step 3: Cross multiply
   149,111.29x = 205,779.24 × 85,461.37
4. Step 4: Simplify right side
   149,111.29x = 17,586,175,767.96
5. Step 5: Solve for x
   x = 17,586,175,767.96/149,111.29
6. Step 6: Final answer
   x = 117,939.93