Finding the Fourth Proportional to 102,147.74, 153,222.72 and 31,081.92

Step by Step Solution

1. Step 1: Write the proportion equation
   102,147.74 : 153,222.72 = 31,081.92 : x
2. Step 2: Convert to fraction form
   102,147.74/153,222.72 = 31,081.92/x
3. Step 3: Cross multiply
   102,147.74x = 153,222.72 × 31,081.92
4. Step 4: Simplify right side
   102,147.74x = 4,762,456,325.22
5. Step 5: Solve for x
   x = 4,762,456,325.22/102,147.74
6. Step 6: Final answer
   x = 46,623.22