Finding the Fourth Proportional to 53,500.40, 73,745.64 and 42,152.60

Step by Step Solution

1. Step 1: Write the proportion equation
   53,500.40 : 73,745.64 = 42,152.60 : x
2. Step 2: Convert to fraction form
   53,500.40/73,745.64 = 42,152.60/x
3. Step 3: Cross multiply
   53,500.40x = 73,745.64 × 42,152.60
4. Step 4: Simplify right side
   53,500.40x = 3,108,570,649.03
5. Step 5: Solve for x
   x = 3,108,570,649.03/53,500.40
6. Step 6: Final answer
   x = 58,103.69