Finding the Fourth Proportional to 85,427.60, 128,116.79 and 32,103.07

Step by Step Solution

1. Step 1: Write the proportion equation
   85,427.60 : 128,116.79 = 32,103.07 : x
2. Step 2: Convert to fraction form
   85,427.60/128,116.79 = 32,103.07/x
3. Step 3: Cross multiply
   85,427.60x = 128,116.79 × 32,103.07
4. Step 4: Simplify right side
   85,427.60x = 4,112,941,917.12
5. Step 5: Solve for x
   x = 4,112,941,917.12/85,427.60
6. Step 6: Final answer
   x = 48,145.36