Finding the Fourth Proportional to 105,298.38, 145,375.56 and 69,548.22

Step by Step Solution

1. Step 1: Write the proportion equation
   105,298.38 : 145,375.56 = 69,548.22 : x
2. Step 2: Convert to fraction form
   105,298.38/145,375.56 = 69,548.22/x
3. Step 3: Cross multiply
   105,298.38x = 145,375.56 × 69,548.22
4. Step 4: Simplify right side
   105,298.38x = 10,110,611,429.50
5. Step 5: Solve for x
   x = 10,110,611,429.50/105,298.38
6. Step 6: Final answer
   x = 96,018.68