Finding the Fourth Proportional to 124,083, 186,157.31 and 64,902.78

Step by Step Solution

1. Step 1: Write the proportion equation
   124,083 : 186,157.31 = 64,902.78 : x
2. Step 2: Convert to fraction form
   124,083/186,157.31 = 64,902.78/x
3. Step 3: Cross multiply
   124,083x = 186,157.31 × 64,902.78
4. Step 4: Simplify right side
   124,083x = 12,082,126,936.32
5. Step 5: Solve for x
   x = 12,082,126,936.32/124,083
6. Step 6: Final answer
   x = 97,371.33