Finding the Fourth Proportional to 123,904.32, 185,915.99 and 67,742.16

Step by Step Solution

1. Step 1: Write the proportion equation
   123,904.32 : 185,915.99 = 67,742.16 : x
2. Step 2: Convert to fraction form
   123,904.32/185,915.99 = 67,742.16/x
3. Step 3: Cross multiply
   123,904.32x = 185,915.99 × 67,742.16
4. Step 4: Simplify right side
   123,904.32x = 12,594,350,741.14
5. Step 5: Solve for x
   x = 12,594,350,741.14/123,904.32
6. Step 6: Final answer
   x = 101,645.78