Finding the Fourth Proportional to 124,621.51, 171,978.38 and 70,906.53

Step by Step Solution

1. Step 1: Write the proportion equation
   124,621.51 : 171,978.38 = 70,906.53 : x
2. Step 2: Convert to fraction form
   124,621.51/171,978.38 = 70,906.53/x
3. Step 3: Cross multiply
   124,621.51x = 171,978.38 × 70,906.53
4. Step 4: Simplify right side
   124,621.51x = 12,194,390,160.82
5. Step 5: Solve for x
   x = 12,194,390,160.82/124,621.51
6. Step 6: Final answer
   x = 97,851.41