Finding the Fourth Proportional to 72,087.33, 108,095.61 and 42,109.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,087.33 : 108,095.61 = 42,109.10 : x
2. Step 2: Convert to fraction form
   72,087.33/108,095.61 = 42,109.10/x
3. Step 3: Cross multiply
   72,087.33x = 108,095.61 × 42,109.10
4. Step 4: Simplify right side
   72,087.33x = 4,551,808,873.84
5. Step 5: Solve for x
   x = 4,551,808,873.84/72,087.33
6. Step 6: Final answer
   x = 63,142.98