Finding the Fourth Proportional to 112,131.94, 168,197.90 and 76,964.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,131.94 : 168,197.90 = 76,964.98 : x
2. Step 2: Convert to fraction form
   112,131.94/168,197.90 = 76,964.98/x
3. Step 3: Cross multiply
   112,131.94x = 168,197.90 × 76,964.98
4. Step 4: Simplify right side
   112,131.94x = 12,945,348,009.54
5. Step 5: Solve for x
   x = 12,945,348,009.54/112,131.94
6. Step 6: Final answer
   x = 115,447.46