Finding the Fourth Proportional to 69,020.66, 103,662.22 and 42,907.88

Step by Step Solution

1. Step 1: Write the proportion equation
   69,020.66 : 103,662.22 = 42,907.88 : x
2. Step 2: Convert to fraction form
   69,020.66/103,662.22 = 42,907.88/x
3. Step 3: Cross multiply
   69,020.66x = 103,662.22 × 42,907.88
4. Step 4: Simplify right side
   69,020.66x = 4,447,926,096.29
5. Step 5: Solve for x
   x = 4,447,926,096.29/69,020.66
6. Step 6: Final answer
   x = 64,443.40