Finding the Fourth Proportional to 105,141, 145,107.95 and 69,405.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,141 : 145,107.95 = 69,405.42 : x
2. Step 2: Convert to fraction form
   105,141/145,107.95 = 69,405.42/x
3. Step 3: Cross multiply
   105,141x = 145,107.95 × 69,405.42
4. Step 4: Simplify right side
   105,141x = 10,071,277,868.06
5. Step 5: Solve for x
   x = 10,071,277,868.06/105,141
6. Step 6: Final answer
   x = 95,788.30