Finding the Fourth Proportional to 162,111.80, 243,110.10 and 73,407.80

Step by Step Solution

1. Step 1: Write the proportion equation
   162,111.80 : 243,110.10 = 73,407.80 : x
2. Step 2: Convert to fraction form
   162,111.80/243,110.10 = 73,407.80/x
3. Step 3: Cross multiply
   162,111.80x = 243,110.10 × 73,407.80
4. Step 4: Simplify right side
   162,111.80x = 17,846,177,598.78
5. Step 5: Solve for x
   x = 17,846,177,598.78/162,111.80
6. Step 6: Final answer
   x = 110,085.62