Finding the Fourth Proportional to 105,820.68, 146,039.10 and 69,948.48

Step by Step Solution

1. Step 1: Write the proportion equation
   105,820.68 : 146,039.10 = 69,948.48 : x
2. Step 2: Convert to fraction form
   105,820.68/146,039.10 = 69,948.48/x
3. Step 3: Cross multiply
   105,820.68x = 146,039.10 × 69,948.48
4. Step 4: Simplify right side
   105,820.68x = 10,215,213,065.57
5. Step 5: Solve for x
   x = 10,215,213,065.57/105,820.68
6. Step 6: Final answer
   x = 96,533.24