Finding the Fourth Proportional to 72,578.68, 100,141.86 and 42,352.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,578.68 : 100,141.86 = 42,352.12 : x
2. Step 2: Convert to fraction form
   72,578.68/100,141.86 = 42,352.12/x
3. Step 3: Cross multiply
   72,578.68x = 100,141.86 × 42,352.12
4. Step 4: Simplify right side
   72,578.68x = 4,241,220,071.74
5. Step 5: Solve for x
   x = 4,241,220,071.74/72,578.68
6. Step 6: Final answer
   x = 58,436.17