Finding the Fourth Proportional to 61,880.30, 85,464.42 and 41,820.02

Step by Step Solution

1. Step 1: Write the proportion equation
   61,880.30 : 85,464.42 = 41,820.02 : x
2. Step 2: Convert to fraction form
   61,880.30/85,464.42 = 41,820.02/x
3. Step 3: Cross multiply
   61,880.30x = 85,464.42 × 41,820.02
4. Step 4: Simplify right side
   61,880.30x = 3,574,123,753.69
5. Step 5: Solve for x
   x = 3,574,123,753.69/61,880.30
6. Step 6: Final answer
   x = 57,758.67