Finding the Fourth Proportional to 66,095.36, 99,146.69 and 42,869.42

Step by Step Solution

1. Step 1: Write the proportion equation
   66,095.36 : 99,146.69 = 42,869.42 : x
2. Step 2: Convert to fraction form
   66,095.36/99,146.69 = 42,869.42/x
3. Step 3: Cross multiply
   66,095.36x = 99,146.69 × 42,869.42
4. Step 4: Simplify right side
   66,095.36x = 4,250,360,385.14
5. Step 5: Solve for x
   x = 4,250,360,385.14/66,095.36
6. Step 6: Final answer
   x = 64,306.49