Finding the Fourth Proportional to 152,449.53, 228,552.18 and 72,447.35

Step by Step Solution

1. Step 1: Write the proportion equation
   152,449.53 : 228,552.18 = 72,447.35 : x
2. Step 2: Convert to fraction form
   152,449.53/228,552.18 = 72,447.35/x
3. Step 3: Cross multiply
   152,449.53x = 228,552.18 × 72,447.35
4. Step 4: Simplify right side
   152,449.53x = 16,557,999,777.72
5. Step 5: Solve for x
   x = 16,557,999,777.72/152,449.53
6. Step 6: Final answer
   x = 108,612.99