Finding the Fourth Proportional to 143,915.13, 215,485.25 and 93,871.17

Step by Step Solution

1. Step 1: Write the proportion equation
   143,915.13 : 215,485.25 = 93,871.17 : x
2. Step 2: Convert to fraction form
   143,915.13/215,485.25 = 93,871.17/x
3. Step 3: Cross multiply
   143,915.13x = 215,485.25 × 93,871.17
4. Step 4: Simplify right side
   143,915.13x = 20,227,852,065.89
5. Step 5: Solve for x
   x = 20,227,852,065.89/143,915.13
6. Step 6: Final answer
   x = 140,554.03