Finding the Fourth Proportional to 123,746.32, 170,640.84 and 73,435.60

Step by Step Solution

1. Step 1: Write the proportion equation
   123,746.32 : 170,640.84 = 73,435.60 : x
2. Step 2: Convert to fraction form
   123,746.32/170,640.84 = 73,435.60/x
3. Step 3: Cross multiply
   123,746.32x = 170,640.84 × 73,435.60
4. Step 4: Simplify right side
   123,746.32x = 12,531,112,469.90
5. Step 5: Solve for x
   x = 12,531,112,469.90/123,746.32
6. Step 6: Final answer
   x = 101,264.53