Finding the Fourth Proportional to 415,082.88, 619,080.17 and 352,315.98

Step by Step Solution

1. Step 1: Write the proportion equation
   415,082.88 : 619,080.17 = 352,315.98 : x
2. Step 2: Convert to fraction form
   415,082.88/619,080.17 = 352,315.98/x
3. Step 3: Cross multiply
   415,082.88x = 619,080.17 × 352,315.98
4. Step 4: Simplify right side
   415,082.88x = 218,111,835,030.54
5. Step 5: Solve for x
   x = 218,111,835,030.54/415,082.88
6. Step 6: Final answer
   x = 525,465.75