Finding the Fourth Proportional to 92,825.25, 139,215.54 and 42,857.34

Step by Step Solution

1. Step 1: Write the proportion equation
   92,825.25 : 139,215.54 = 42,857.34 : x
2. Step 2: Convert to fraction form
   92,825.25/139,215.54 = 42,857.34/x
3. Step 3: Cross multiply
   92,825.25x = 139,215.54 × 42,857.34
4. Step 4: Simplify right side
   92,825.25x = 5,966,407,731.06
5. Step 5: Solve for x
   x = 5,966,407,731.06/92,825.25
6. Step 6: Final answer
   x = 64,275.70