Finding the Fourth Proportional to 112,904.89, 155,786.69 and 66,956.02

Step by Step Solution

1. Step 1: Write the proportion equation
   112,904.89 : 155,786.69 = 66,956.02 : x
2. Step 2: Convert to fraction form
   112,904.89/155,786.69 = 66,956.02/x
3. Step 3: Cross multiply
   112,904.89x = 155,786.69 × 66,956.02
4. Step 4: Simplify right side
   112,904.89x = 10,430,856,509.30
5. Step 5: Solve for x
   x = 10,430,856,509.30/112,904.89
6. Step 6: Final answer
   x = 92,386.23