Finding the Fourth Proportional to 149,109.32, 205,782.72 and 85,453.04

Step by Step Solution

1. Step 1: Write the proportion equation
   149,109.32 : 205,782.72 = 85,453.04 : x
2. Step 2: Convert to fraction form
   149,109.32/205,782.72 = 85,453.04/x
3. Step 3: Cross multiply
   149,109.32x = 205,782.72 × 85,453.04
4. Step 4: Simplify right side
   149,109.32x = 17,584,759,003.47
5. Step 5: Solve for x
   x = 17,584,759,003.47/149,109.32
6. Step 6: Final answer
   x = 117,931.99