Finding the Fourth Proportional to 124,896.47, 172,346.71 and 70,445.64

Step by Step Solution

1. Step 1: Write the proportion equation
   124,896.47 : 172,346.71 = 70,445.64 : x
2. Step 2: Convert to fraction form
   124,896.47/172,346.71 = 70,445.64/x
3. Step 3: Cross multiply
   124,896.47x = 172,346.71 × 70,445.64
4. Step 4: Simplify right side
   124,896.47x = 12,141,074,111.73
5. Step 5: Solve for x
   x = 12,141,074,111.73/124,896.47
6. Step 6: Final answer
   x = 97,209.10