Finding the Fourth Proportional to 352,335.86, 528,584.52 and 152,689.76

Step by Step Solution

1. Step 1: Write the proportion equation
   352,335.86 : 528,584.52 = 152,689.76 : x
2. Step 2: Convert to fraction form
   352,335.86/528,584.52 = 152,689.76/x
3. Step 3: Cross multiply
   352,335.86x = 528,584.52 × 152,689.76
4. Step 4: Simplify right side
   352,335.86x = 80,709,443,498.52
5. Step 5: Solve for x
   x = 80,709,443,498.52/352,335.86
6. Step 6: Final answer
   x = 229,069.63