Finding the Fourth Proportional to 152,391.04, 228,435.86 and 72,288.52

Step by Step Solution

1. Step 1: Write the proportion equation
   152,391.04 : 228,435.86 = 72,288.52 : x
2. Step 2: Convert to fraction form
   152,391.04/228,435.86 = 72,288.52/x
3. Step 3: Cross multiply
   152,391.04x = 228,435.86 × 72,288.52
4. Step 4: Simplify right side
   152,391.04x = 16,513,290,234.33
5. Step 5: Solve for x
   x = 16,513,290,234.33/152,391.04
6. Step 6: Final answer
   x = 108,361.29