Finding the Fourth Proportional to 105,106.10, 157,659.15 and 49,810.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,106.10 : 157,659.15 = 49,810.10 : x
2. Step 2: Convert to fraction form
   105,106.10/157,659.15 = 49,810.10/x
3. Step 3: Cross multiply
   105,106.10x = 157,659.15 × 49,810.10
4. Step 4: Simplify right side
   105,106.10x = 7,853,018,027.42
5. Step 5: Solve for x
   x = 7,853,018,027.42/105,106.10
6. Step 6: Final answer
   x = 74,715.15