Finding the Fourth Proportional to 123,776.34, 170,814.87 and 67,191.36

Step by Step Solution

1. Step 1: Write the proportion equation
   123,776.34 : 170,814.87 = 67,191.36 : x
2. Step 2: Convert to fraction form
   123,776.34/170,814.87 = 67,191.36/x
3. Step 3: Cross multiply
   123,776.34x = 170,814.87 × 67,191.36
4. Step 4: Simplify right side
   123,776.34x = 11,477,283,423.52
5. Step 5: Solve for x
   x = 11,477,283,423.52/123,776.34
6. Step 6: Final answer
   x = 92,725.99