Finding the Fourth Proportional to 69,021.41, 103,663.33 and 42,908.63

Step by Step Solution

1. Step 1: Write the proportion equation
   69,021.41 : 103,663.33 = 42,908.63 : x
2. Step 2: Convert to fraction form
   69,021.41/103,663.33 = 42,908.63/x
3. Step 3: Cross multiply
   69,021.41x = 103,663.33 × 42,908.63
4. Step 4: Simplify right side
   69,021.41x = 4,448,051,471.54
5. Step 5: Solve for x
   x = 4,448,051,471.54/69,021.41
6. Step 6: Final answer
   x = 64,444.52