Finding the Fourth Proportional to 123,535.34, 170,478.90 and 66,946.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,535.34 : 170,478.90 = 66,946.72 : x
2. Step 2: Convert to fraction form
   123,535.34/170,478.90 = 66,946.72/x
3. Step 3: Cross multiply
   123,535.34x = 170,478.90 × 66,946.72
4. Step 4: Simplify right side
   123,535.34x = 11,413,003,184.21
5. Step 5: Solve for x
   x = 11,413,003,184.21/123,535.34
6. Step 6: Final answer
   x = 92,386.54