Finding the Fourth Proportional to 124,590.80, 171,951.72 and 70,865.43

Step by Step Solution

1. Step 1: Write the proportion equation
   124,590.80 : 171,951.72 = 70,865.43 : x
2. Step 2: Convert to fraction form
   124,590.80/171,951.72 = 70,865.43/x
3. Step 3: Cross multiply
   124,590.80x = 171,951.72 × 70,865.43
4. Step 4: Simplify right side
   124,590.80x = 12,185,432,577.04
5. Step 5: Solve for x
   x = 12,185,432,577.04/124,590.80
6. Step 6: Final answer
   x = 97,803.63