Finding the Fourth Proportional to 37,140.80, 55,601.85 and 34,978.10

Step by Step Solution

1. Step 1: Write the proportion equation
   37,140.80 : 55,601.85 = 34,978.10 : x
2. Step 2: Convert to fraction form
   37,140.80/55,601.85 = 34,978.10/x
3. Step 3: Cross multiply
   37,140.80x = 55,601.85 × 34,978.10
4. Step 4: Simplify right side
   37,140.80x = 1,944,847,069.49
5. Step 5: Solve for x
   x = 1,944,847,069.49/37,140.80
6. Step 6: Final answer
   x = 52,364.17