Finding the Fourth Proportional to 42,020.93, 57,988.10 and 22,900.85

Step by Step Solution

1. Step 1: Write the proportion equation
   42,020.93 : 57,988.10 = 22,900.85 : x
2. Step 2: Convert to fraction form
   42,020.93/57,988.10 = 22,900.85/x
3. Step 3: Cross multiply
   42,020.93x = 57,988.10 × 22,900.85
4. Step 4: Simplify right side
   42,020.93x = 1,327,976,779.89
5. Step 5: Solve for x
   x = 1,327,976,779.89/42,020.93
6. Step 6: Final answer
   x = 31,602.75