Finding the Fourth Proportional to 82,167,121.50, 123,204,510.18 and 56,288,601.96

Step by Step Solution

1. Step 1: Write the proportion equation
   82,167,121.50 : 123,204,510.18 = 56,288,601.96 : x
2. Step 2: Convert to fraction form
   82,167,121.50/123,204,510.18 = 56,288,601.96/x
3. Step 3: Cross multiply
   82,167,121.50x = 123,204,510.18 × 56,288,601.96
4. Step 4: Simplify right side
   82,167,121.50x = 6,935,009,633,198,788
5. Step 5: Solve for x
   x = 6,935,009,633,198,788/82,167,121.50
6. Step 6: Final answer
   x = 84,401,272.75