Finding the Fourth Proportional to 69,820.30, 96,361.89 and 39,613.10

Step by Step Solution

1. Step 1: Write the proportion equation
   69,820.30 : 96,361.89 = 39,613.10 : x
2. Step 2: Convert to fraction form
   69,820.30/96,361.89 = 39,613.10/x
3. Step 3: Cross multiply
   69,820.30x = 96,361.89 × 39,613.10
4. Step 4: Simplify right side
   69,820.30x = 3,817,193,184.76
5. Step 5: Solve for x
   x = 3,817,193,184.76/69,820.30
6. Step 6: Final answer
   x = 54,671.69