Finding the Fourth Proportional to 105,820.43, 146,038.76 and 69,948.23

Step by Step Solution

1. Step 1: Write the proportion equation
   105,820.43 : 146,038.76 = 69,948.23 : x
2. Step 2: Convert to fraction form
   105,820.43/146,038.76 = 69,948.23/x
3. Step 3: Cross multiply
   105,820.43x = 146,038.76 × 69,948.23
4. Step 4: Simplify right side
   105,820.43x = 10,215,152,773.39
5. Step 5: Solve for x
   x = 10,215,152,773.39/105,820.43
6. Step 6: Final answer
   x = 96,532.90