Finding the Fourth Proportional to 152,257.98, 228,402.33 and 52,405.05

Step by Step Solution

1. Step 1: Write the proportion equation
   152,257.98 : 228,402.33 = 52,405.05 : x
2. Step 2: Convert to fraction form
   152,257.98/228,402.33 = 52,405.05/x
3. Step 3: Cross multiply
   152,257.98x = 228,402.33 × 52,405.05
4. Step 4: Simplify right side
   152,257.98x = 11,969,435,523.77
5. Step 5: Solve for x
   x = 11,969,435,523.77/152,257.98
6. Step 6: Final answer
   x = 78,612.86