Finding the Fourth Proportional to 72,078.48, 108,071.52 and 29,987.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,078.48 : 108,071.52 = 29,987.76 : x
2. Step 2: Convert to fraction form
   72,078.48/108,071.52 = 29,987.76/x
3. Step 3: Cross multiply
   72,078.48x = 108,071.52 × 29,987.76
4. Step 4: Simplify right side
   72,078.48x = 3,240,822,804.60
5. Step 5: Solve for x
   x = 3,240,822,804.60/72,078.48
6. Step 6: Final answer
   x = 44,962.42