Finding the Fourth Proportional to 122,275.10, 168,667.99 and 76,881.15

Step by Step Solution

1. Step 1: Write the proportion equation
   122,275.10 : 168,667.99 = 76,881.15 : x
2. Step 2: Convert to fraction form
   122,275.10/168,667.99 = 76,881.15/x
3. Step 3: Cross multiply
   122,275.10x = 168,667.99 × 76,881.15
4. Step 4: Simplify right side
   122,275.10x = 12,967,388,847.19
5. Step 5: Solve for x
   x = 12,967,388,847.19/122,275.10
6. Step 6: Final answer
   x = 106,050.93