Finding the Fourth Proportional to 105,111.09, 157,662.12 and 48,931.92

Step by Step Solution

1. Step 1: Write the proportion equation
   105,111.09 : 157,662.12 = 48,931.92 : x
2. Step 2: Convert to fraction form
   105,111.09/157,662.12 = 48,931.92/x
3. Step 3: Cross multiply
   105,111.09x = 157,662.12 × 48,931.92
4. Step 4: Simplify right side
   105,111.09x = 7,714,710,242.87
5. Step 5: Solve for x
   x = 7,714,710,242.87/105,111.09
6. Step 6: Final answer
   x = 73,395.78