Finding the Fourth Proportional to 93,419.41, 140,128.18 and 42,804.08

Step by Step Solution

1. Step 1: Write the proportion equation
   93,419.41 : 140,128.18 = 42,804.08 : x
2. Step 2: Convert to fraction form
   93,419.41/140,128.18 = 42,804.08/x
3. Step 3: Cross multiply
   93,419.41x = 140,128.18 × 42,804.08
4. Step 4: Simplify right side
   93,419.41x = 5,998,057,826.97
5. Step 5: Solve for x
   x = 5,998,057,826.97/93,419.41
6. Step 6: Final answer
   x = 64,205.69