Finding the Fourth Proportional to 166,665,470.72, 250,003,875.78 and 79,181,838.14

Step by Step Solution

1. Step 1: Write the proportion equation
   166,665,470.72 : 250,003,875.78 = 79,181,838.14 : x
2. Step 2: Convert to fraction form
   166,665,470.72/250,003,875.78 = 79,181,838.14/x
3. Step 3: Cross multiply
   166,665,470.72x = 250,003,875.78 × 79,181,838.14
4. Step 4: Simplify right side
   166,665,470.72x = 19,795,766,425,134,608
5. Step 5: Solve for x
   x = 19,795,766,425,134,608/166,665,470.72
6. Step 6: Final answer
   x = 118,775,450.85