Finding the Fourth Proportional to 85,111.22, 127,687.08 and 42,887.54

Step by Step Solution

1. Step 1: Write the proportion equation
   85,111.22 : 127,687.08 = 42,887.54 : x
2. Step 2: Convert to fraction form
   85,111.22/127,687.08 = 42,887.54/x
3. Step 3: Cross multiply
   85,111.22x = 127,687.08 × 42,887.54
4. Step 4: Simplify right side
   85,111.22x = 5,476,184,750.98
5. Step 5: Solve for x
   x = 5,476,184,750.98/85,111.22
6. Step 6: Final answer
   x = 64,341.51