Finding the Fourth Proportional to 152,217, 228,261.18 and 45,616.11

Step by Step Solution

1. Step 1: Write the proportion equation
   152,217 : 228,261.18 = 45,616.11 : x
2. Step 2: Convert to fraction form
   152,217/228,261.18 = 45,616.11/x
3. Step 3: Cross multiply
   152,217x = 228,261.18 × 45,616.11
4. Step 4: Simplify right side
   152,217x = 10,412,387,095.61
5. Step 5: Solve for x
   x = 10,412,387,095.61/152,217
6. Step 6: Final answer
   x = 68,404.89