Finding the Fourth Proportional to 152,172, 228,258.72 and 53,676

Step by Step Solution

1. Step 1: Write the proportion equation
   152,172 : 228,258.72 = 53,676 : x
2. Step 2: Convert to fraction form
   152,172/228,258.72 = 53,676/x
3. Step 3: Cross multiply
   152,172x = 228,258.72 × 53,676
4. Step 4: Simplify right side
   152,172x = 12,252,015,054.72
5. Step 5: Solve for x
   x = 12,252,015,054.72/152,172
6. Step 6: Final answer
   x = 80,514.25