Finding the Fourth Proportional to 74,141.61, 102,322.74 and 42,315.27

Step by Step Solution

1. Step 1: Write the proportion equation
   74,141.61 : 102,322.74 = 42,315.27 : x
2. Step 2: Convert to fraction form
   74,141.61/102,322.74 = 42,315.27/x
3. Step 3: Cross multiply
   74,141.61x = 102,322.74 × 42,315.27
4. Step 4: Simplify right side
   74,141.61x = 4,329,814,370.24
5. Step 5: Solve for x
   x = 4,329,814,370.24/74,141.61
6. Step 6: Final answer
   x = 58,399.25