Finding the Fourth Proportional to 69,939.98, 105,001.42 and 41,528.78

Step by Step Solution

1. Step 1: Write the proportion equation
   69,939.98 : 105,001.42 = 41,528.78 : x
2. Step 2: Convert to fraction form
   69,939.98/105,001.42 = 41,528.78/x
3. Step 3: Cross multiply
   69,939.98x = 105,001.42 × 41,528.78
4. Step 4: Simplify right side
   69,939.98x = 4,360,580,870.87
5. Step 5: Solve for x
   x = 4,360,580,870.87/69,939.98
6. Step 6: Final answer
   x = 62,347.47