Finding the Fourth Proportional to 73,958.88, 102,073.88 and 42,130.80

Step by Step Solution

1. Step 1: Write the proportion equation
   73,958.88 : 102,073.88 = 42,130.80 : x
2. Step 2: Convert to fraction form
   73,958.88/102,073.88 = 42,130.80/x
3. Step 3: Cross multiply
   73,958.88x = 102,073.88 × 42,130.80
4. Step 4: Simplify right side
   73,958.88x = 4,300,454,223.50
5. Step 5: Solve for x
   x = 4,300,454,223.50/73,958.88
6. Step 6: Final answer
   x = 58,146.56