Finding the Fourth Proportional to 121,384,953.72, 167,510,897.37 and 65,629,983.96

Step by Step Solution

1. Step 1: Write the proportion equation
   121,384,953.72 : 167,510,897.37 = 65,629,983.96 : x
2. Step 2: Convert to fraction form
   121,384,953.72/167,510,897.37 = 65,629,983.96/x
3. Step 3: Cross multiply
   121,384,953.72x = 167,510,897.37 × 65,629,983.96
4. Step 4: Simplify right side
   121,384,953.72x = 10,993,737,507,518,306
5. Step 5: Solve for x
   x = 10,993,737,507,518,306/121,384,953.72
6. Step 6: Final answer
   x = 90,569,194.70