Finding the Fourth Proportional to 143,018.31, 214,536.57 and 48,258.03

Step by Step Solution

1. Step 1: Write the proportion equation
   143,018.31 : 214,536.57 = 48,258.03 : x
2. Step 2: Convert to fraction form
   143,018.31/214,536.57 = 48,258.03/x
3. Step 3: Cross multiply
   143,018.31x = 214,536.57 × 48,258.03
4. Step 4: Simplify right side
   143,018.31x = 10,353,111,158.47
5. Step 5: Solve for x
   x = 10,353,111,158.47/143,018.31
6. Step 6: Final answer
   x = 72,390.11