Finding the Fourth Proportional to 400,384.96, 552,522.72 and 219,096.16

Step by Step Solution

1. Step 1: Write the proportion equation
   400,384.96 : 552,522.72 = 219,096.16 : x
2. Step 2: Convert to fraction form
   400,384.96/552,522.72 = 219,096.16/x
3. Step 3: Cross multiply
   400,384.96x = 552,522.72 × 219,096.16
4. Step 4: Simplify right side
   400,384.96x = 121,055,606,264.76
5. Step 5: Solve for x
   x = 121,055,606,264.76/400,384.96
6. Step 6: Final answer
   x = 302,348.04