Finding the Fourth Proportional to 124,427.60, 171,710.04 and 70,712.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,427.60 : 171,710.04 = 70,712.72 : x
2. Step 2: Convert to fraction form
   124,427.60/171,710.04 = 70,712.72/x
3. Step 3: Cross multiply
   124,427.60x = 171,710.04 × 70,712.72
4. Step 4: Simplify right side
   124,427.60x = 12,142,083,979.71
5. Step 5: Solve for x
   x = 12,142,083,979.71/124,427.60
6. Step 6: Final answer
   x = 97,583.53