Finding the Fourth Proportional to 85,056.18, 127,602.72 and 25,890.31

Step by Step Solution

1. Step 1: Write the proportion equation
   85,056.18 : 127,602.72 = 25,890.31 : x
2. Step 2: Convert to fraction form
   85,056.18/127,602.72 = 25,890.31/x
3. Step 3: Cross multiply
   85,056.18x = 127,602.72 × 25,890.31
4. Step 4: Simplify right side
   85,056.18x = 3,303,674,137.15
5. Step 5: Solve for x
   x = 3,303,674,137.15/85,056.18
6. Step 6: Final answer
   x = 38,841.08