Finding the Fourth Proportional to 101,624.20, 152,381.31 and 80,698.86

Step by Step Solution

1. Step 1: Write the proportion equation
   101,624.20 : 152,381.31 = 80,698.86 : x
2. Step 2: Convert to fraction form
   101,624.20/152,381.31 = 80,698.86/x
3. Step 3: Cross multiply
   101,624.20x = 152,381.31 × 80,698.86
4. Step 4: Simplify right side
   101,624.20x = 12,296,998,002.31
5. Step 5: Solve for x
   x = 12,296,998,002.31/101,624.20
6. Step 6: Final answer
   x = 121,004.62