Finding the Fourth Proportional to 69,091.71, 103,471.48 and 39,419.58

Step by Step Solution

1. Step 1: Write the proportion equation
   69,091.71 : 103,471.48 = 39,419.58 : x
2. Step 2: Convert to fraction form
   69,091.71/103,471.48 = 39,419.58/x
3. Step 3: Cross multiply
   69,091.71x = 103,471.48 × 39,419.58
4. Step 4: Simplify right side
   69,091.71x = 4,078,802,086.48
5. Step 5: Solve for x
   x = 4,078,802,086.48/69,091.71
6. Step 6: Final answer
   x = 59,034.61