Finding the Fourth Proportional to 42,018.83, 57,988.80 and 23,155.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,018.83 : 57,988.80 = 23,155.96 : x
2. Step 2: Convert to fraction form
   42,018.83/57,988.80 = 23,155.96/x
3. Step 3: Cross multiply
   42,018.83x = 57,988.80 × 23,155.96
4. Step 4: Simplify right side
   42,018.83x = 1,342,786,333.25
5. Step 5: Solve for x
   x = 1,342,786,333.25/42,018.83
6. Step 6: Final answer
   x = 31,956.78