Finding the Fourth Proportional to 152,072.86, 228,141.89 and 45,465.16

Step by Step Solution

1. Step 1: Write the proportion equation
   152,072.86 : 228,141.89 = 45,465.16 : x
2. Step 2: Convert to fraction form
   152,072.86/228,141.89 = 45,465.16/x
3. Step 3: Cross multiply
   152,072.86x = 228,141.89 × 45,465.16
4. Step 4: Simplify right side
   152,072.86x = 10,372,507,531.55
5. Step 5: Solve for x
   x = 10,372,507,531.55/152,072.86
6. Step 6: Final answer
   x = 68,207.49