Finding the Fourth Proportional to 68,928.17, 95,131.06 and 42,086.18

Step by Step Solution

1. Step 1: Write the proportion equation
   68,928.17 : 95,131.06 = 42,086.18 : x
2. Step 2: Convert to fraction form
   68,928.17/95,131.06 = 42,086.18/x
3. Step 3: Cross multiply
   68,928.17x = 95,131.06 × 42,086.18
4. Step 4: Simplify right side
   68,928.17x = 4,003,703,047.36
5. Step 5: Solve for x
   x = 4,003,703,047.36/68,928.17
6. Step 6: Final answer
   x = 58,085.15