Finding the Fourth Proportional to 106,487,680.86, 159,311,245.27 and 80,654,399.46

Step by Step Solution

1. Step 1: Write the proportion equation
   106,487,680.86 : 159,311,245.27 = 80,654,399.46 : x
2. Step 2: Convert to fraction form
   106,487,680.86/159,311,245.27 = 80,654,399.46/x
3. Step 3: Cross multiply
   106,487,680.86x = 159,311,245.27 × 80,654,399.46
4. Step 4: Simplify right side
   106,487,680.86x = 12,849,152,814,476,616
5. Step 5: Solve for x
   x = 12,849,152,814,476,616/106,487,680.86
6. Step 6: Final answer
   x = 120,663,279.65