Finding the Fourth Proportional to 124,390.88, 171,664.04 and 70,685

Step by Step Solution

1. Step 1: Write the proportion equation
   124,390.88 : 171,664.04 = 70,685 : x
2. Step 2: Convert to fraction form
   124,390.88/171,664.04 = 70,685/x
3. Step 3: Cross multiply
   124,390.88x = 171,664.04 × 70,685
4. Step 4: Simplify right side
   124,390.88x = 12,134,072,667.40
5. Step 5: Solve for x
   x = 12,134,072,667.40/124,390.88
6. Step 6: Final answer
   x = 97,547.93