Finding the Fourth Proportional to 92,812.14, 139,223.07 and 42,938.82

Step by Step Solution

1. Step 1: Write the proportion equation
   92,812.14 : 139,223.07 = 42,938.82 : x
2. Step 2: Convert to fraction form
   92,812.14/139,223.07 = 42,938.82/x
3. Step 3: Cross multiply
   92,812.14x = 139,223.07 × 42,938.82
4. Step 4: Simplify right side
   92,812.14x = 5,978,074,342.58
5. Step 5: Solve for x
   x = 5,978,074,342.58/92,812.14
6. Step 6: Final answer
   x = 64,410.48