Finding the Fourth Proportional to 107,215.48, 148,056.96 and 69,041.28

Step by Step Solution

1. Step 1: Write the proportion equation
   107,215.48 : 148,056.96 = 69,041.28 : x
2. Step 2: Convert to fraction form
   107,215.48/148,056.96 = 69,041.28/x
3. Step 3: Cross multiply
   107,215.48x = 148,056.96 × 69,041.28
4. Step 4: Simplify right side
   107,215.48x = 10,222,042,031.31
5. Step 5: Solve for x
   x = 10,222,042,031.31/107,215.48
6. Step 6: Final answer
   x = 95,341.10