Finding the Fourth Proportional to 149,107.29, 205,773.72 and 85,457.37

Step by Step Solution

1. Step 1: Write the proportion equation
   149,107.29 : 205,773.72 = 85,457.37 : x
2. Step 2: Convert to fraction form
   149,107.29/205,773.72 = 85,457.37/x
3. Step 3: Cross multiply
   149,107.29x = 205,773.72 × 85,457.37
4. Step 4: Simplify right side
   149,107.29x = 17,584,880,926.32
5. Step 5: Solve for x
   x = 17,584,880,926.32/149,107.29
6. Step 6: Final answer
   x = 117,934.41