Finding the Fourth Proportional to 53,756.72, 74,149.99 and 42,422.59

Step by Step Solution

1. Step 1: Write the proportion equation
   53,756.72 : 74,149.99 = 42,422.59 : x
2. Step 2: Convert to fraction form
   53,756.72/74,149.99 = 42,422.59/x
3. Step 3: Cross multiply
   53,756.72x = 74,149.99 × 42,422.59
4. Step 4: Simplify right side
   53,756.72x = 3,145,634,624.27
5. Step 5: Solve for x
   x = 3,145,634,624.27/53,756.72
6. Step 6: Final answer
   x = 58,516.12