Finding the Fourth Proportional to 145,956.15, 219,016.22 and 79,400.93

Step by Step Solution

1. Step 1: Write the proportion equation
   145,956.15 : 219,016.22 = 79,400.93 : x
2. Step 2: Convert to fraction form
   145,956.15/219,016.22 = 79,400.93/x
3. Step 3: Cross multiply
   145,956.15x = 219,016.22 × 79,400.93
4. Step 4: Simplify right side
   145,956.15x = 17,390,090,061.00
5. Step 5: Solve for x
   x = 17,390,090,061.00/145,956.15
6. Step 6: Final answer
   x = 119,145.99