Finding the Fourth Proportional to 76,211.34, 105,222.98 and 47,574.60

Step by Step Solution

1. Step 1: Write the proportion equation
   76,211.34 : 105,222.98 = 47,574.60 : x
2. Step 2: Convert to fraction form
   76,211.34/105,222.98 = 47,574.60/x
3. Step 3: Cross multiply
   76,211.34x = 105,222.98 × 47,574.60
4. Step 4: Simplify right side
   76,211.34x = 5,005,941,184.31
5. Step 5: Solve for x
   x = 5,005,941,184.31/76,211.34
6. Step 6: Final answer
   x = 65,684.99