Finding the Fourth Proportional to 552,196.64, 828,334.56 and 147,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   552,196.64 : 828,334.56 = 147,386.72 : x
2. Step 2: Convert to fraction form
   552,196.64/828,334.56 = 147,386.72/x
3. Step 3: Cross multiply
   552,196.64x = 828,334.56 × 147,386.72
4. Step 4: Simplify right side
   552,196.64x = 122,085,513,861.04
5. Step 5: Solve for x
   x = 122,085,513,861.04/552,196.64
6. Step 6: Final answer
   x = 221,090.65