Finding the Fourth Proportional to 353,556.64, 488,088.72 and 272,802.72

Step by Step Solution

1. Step 1: Write the proportion equation
   353,556.64 : 488,088.72 = 272,802.72 : x
2. Step 2: Convert to fraction form
   353,556.64/488,088.72 = 272,802.72/x
3. Step 3: Cross multiply
   353,556.64x = 488,088.72 × 272,802.72
4. Step 4: Simplify right side
   353,556.64x = 133,151,930,417.32
5. Step 5: Solve for x
   x = 133,151,930,417.32/353,556.64
6. Step 6: Final answer
   x = 376,607.07