Finding the Fourth Proportional to 613,288.48, 919,868.01 and 164,054.71

Step by Step Solution

1. Step 1: Write the proportion equation
   613,288.48 : 919,868.01 = 164,054.71 : x
2. Step 2: Convert to fraction form
   613,288.48/919,868.01 = 164,054.71/x
3. Step 3: Cross multiply
   613,288.48x = 919,868.01 × 164,054.71
4. Step 4: Simplify right side
   613,288.48x = 150,908,679,618.83
5. Step 5: Solve for x
   x = 150,908,679,618.83/613,288.48
6. Step 6: Final answer
   x = 246,064.76