Finding the Fourth Proportional to 66,674.62, 91,967.61 and 42,763.42

Step by Step Solution

1. Step 1: Write the proportion equation
   66,674.62 : 91,967.61 = 42,763.42 : x
2. Step 2: Convert to fraction form
   66,674.62/91,967.61 = 42,763.42/x
3. Step 3: Cross multiply
   66,674.62x = 91,967.61 × 42,763.42
4. Step 4: Simplify right side
   66,674.62x = 3,932,849,532.83
5. Step 5: Solve for x
   x = 3,932,849,532.83/66,674.62
6. Step 6: Final answer
   x = 58,985.71