Finding the Fourth Proportional to 124,617.98, 171,949.80 and 70,899.86

Step by Step Solution

1. Step 1: Write the proportion equation
   124,617.98 : 171,949.80 = 70,899.86 : x
2. Step 2: Convert to fraction form
   124,617.98/171,949.80 = 70,899.86/x
3. Step 3: Cross multiply
   124,617.98x = 171,949.80 × 70,899.86
4. Step 4: Simplify right side
   124,617.98x = 12,191,216,747.03
5. Step 5: Solve for x
   x = 12,191,216,747.03/124,617.98
6. Step 6: Final answer
   x = 97,828.71