Finding the Fourth Proportional to 152,443.12, 228,676.53 and 45,818.77

Step by Step Solution

1. Step 1: Write the proportion equation
   152,443.12 : 228,676.53 = 45,818.77 : x
2. Step 2: Convert to fraction form
   152,443.12/228,676.53 = 45,818.77/x
3. Step 3: Cross multiply
   152,443.12x = 228,676.53 × 45,818.77
4. Step 4: Simplify right side
   152,443.12x = 10,477,677,332.47
5. Step 5: Solve for x
   x = 10,477,677,332.47/152,443.12
6. Step 6: Final answer
   x = 68,731.72