Finding the Fourth Proportional to 42,018.87, 57,985.29 and 22,898.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,018.87 : 57,985.29 = 22,898.81 : x
2. Step 2: Convert to fraction form
   42,018.87/57,985.29 = 22,898.81/x
3. Step 3: Cross multiply
   42,018.87x = 57,985.29 × 22,898.81
4. Step 4: Simplify right side
   42,018.87x = 1,327,794,138.50
5. Step 5: Solve for x
   x = 1,327,794,138.50/42,018.87
6. Step 6: Final answer
   x = 31,599.95