Finding the Fourth Proportional to 123,971.64, 171,085.96 and 70,256.08

Step by Step Solution

1. Step 1: Write the proportion equation
   123,971.64 : 171,085.96 = 70,256.08 : x
2. Step 2: Convert to fraction form
   123,971.64/171,085.96 = 70,256.08/x
3. Step 3: Cross multiply
   123,971.64x = 171,085.96 × 70,256.08
4. Step 4: Simplify right side
   123,971.64x = 12,019,828,892.64
5. Step 5: Solve for x
   x = 12,019,828,892.64/123,971.64
6. Step 6: Final answer
   x = 96,956.28