Finding the Fourth Proportional to 69,091.68, 103,631.55 and 42,067.01

Step by Step Solution

1. Step 1: Write the proportion equation
   69,091.68 : 103,631.55 = 42,067.01 : x
2. Step 2: Convert to fraction form
   69,091.68/103,631.55 = 42,067.01/x
3. Step 3: Cross multiply
   69,091.68x = 103,631.55 × 42,067.01
4. Step 4: Simplify right side
   69,091.68x = 4,359,468,932.01
5. Step 5: Solve for x
   x = 4,359,468,932.01/69,091.68
6. Step 6: Final answer
   x = 63,096.87