Finding the Fourth Proportional to 152,123.16, 228,217.32 and 45,515.34

Step by Step Solution

1. Step 1: Write the proportion equation
   152,123.16 : 228,217.32 = 45,515.34 : x
2. Step 2: Convert to fraction form
   152,123.16/228,217.32 = 45,515.34/x
3. Step 3: Cross multiply
   152,123.16x = 228,217.32 × 45,515.34
4. Step 4: Simplify right side
   152,123.16x = 10,387,389,683.56
5. Step 5: Solve for x
   x = 10,387,389,683.56/152,123.16
6. Step 6: Final answer
   x = 68,282.76