Finding the Fourth Proportional to 74,141.52, 102,323.88 and 42,315

Step by Step Solution

1. Step 1: Write the proportion equation
   74,141.52 : 102,323.88 = 42,315 : x
2. Step 2: Convert to fraction form
   74,141.52/102,323.88 = 42,315/x
3. Step 3: Cross multiply
   74,141.52x = 102,323.88 × 42,315
4. Step 4: Simplify right side
   74,141.52x = 4,329,834,982.20
5. Step 5: Solve for x
   x = 4,329,834,982.20/74,141.52
6. Step 6: Final answer
   x = 58,399.60