Finding the Fourth Proportional to 67,779.42, 93,513.20 and 40,911.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67,779.42 : 93,513.20 = 40,911.72 : x
2. Step 2: Convert to fraction form
   67,779.42/93,513.20 = 40,911.72/x
3. Step 3: Cross multiply
   67,779.42x = 93,513.20 × 40,911.72
4. Step 4: Simplify right side
   67,779.42x = 3,825,785,650.15
5. Step 5: Solve for x
   x = 3,825,785,650.15/67,779.42
6. Step 6: Final answer
   x = 56,444.65