Finding the Fourth Proportional to 62,155.57, 85,745.37 and 42,019.51

Step by Step Solution

1. Step 1: Write the proportion equation
   62,155.57 : 85,745.37 = 42,019.51 : x
2. Step 2: Convert to fraction form
   62,155.57/85,745.37 = 42,019.51/x
3. Step 3: Cross multiply
   62,155.57x = 85,745.37 × 42,019.51
4. Step 4: Simplify right side
   62,155.57x = 3,602,978,432.17
5. Step 5: Solve for x
   x = 3,602,978,432.17/62,155.57
6. Step 6: Final answer
   x = 57,967.10