Finding the Fourth Proportional to 152,647.55, 228,992.16 and 52,780.92

Step by Step Solution

1. Step 1: Write the proportion equation
   152,647.55 : 228,992.16 = 52,780.92 : x
2. Step 2: Convert to fraction form
   152,647.55/228,992.16 = 52,780.92/x
3. Step 3: Cross multiply
   152,647.55x = 228,992.16 × 52,780.92
4. Step 4: Simplify right side
   152,647.55x = 12,086,416,877.59
5. Step 5: Solve for x
   x = 12,086,416,877.59/152,647.55
6. Step 6: Final answer
   x = 79,178.59