Finding the Fourth Proportional to 443,888, 612,580.56 and 242,696.96

Step by Step Solution

1. Step 1: Write the proportion equation
   443,888 : 612,580.56 = 242,696.96 : x
2. Step 2: Convert to fraction form
   443,888/612,580.56 = 242,696.96/x
3. Step 3: Cross multiply
   443,888x = 612,580.56 × 242,696.96
4. Step 4: Simplify right side
   443,888x = 148,671,439,667.10
5. Step 5: Solve for x
   x = 148,671,439,667.10/443,888
6. Step 6: Final answer
   x = 334,930.07