Finding the Fourth Proportional to 57,603.02, 79,461.83 and 39,666.94

Step by Step Solution

1. Step 1: Write the proportion equation
   57,603.02 : 79,461.83 = 39,666.94 : x
2. Step 2: Convert to fraction form
   57,603.02/79,461.83 = 39,666.94/x
3. Step 3: Cross multiply
   57,603.02x = 79,461.83 × 39,666.94
4. Step 4: Simplify right side
   57,603.02x = 3,152,007,642.90
5. Step 5: Solve for x
   x = 3,152,007,642.90/57,603.02
6. Step 6: Final answer
   x = 54,719.49