Finding the Fourth Proportional to 163,978.02, 245,942.55 and 45,637.02

Step by Step Solution

1. Step 1: Write the proportion equation
   163,978.02 : 245,942.55 = 45,637.02 : x
2. Step 2: Convert to fraction form
   163,978.02/245,942.55 = 45,637.02/x
3. Step 3: Cross multiply
   163,978.02x = 245,942.55 × 45,637.02
4. Step 4: Simplify right side
   163,978.02x = 11,224,085,073.20
5. Step 5: Solve for x
   x = 11,224,085,073.20/163,978.02
6. Step 6: Final answer
   x = 68,448.72