Finding the Fourth Proportional to 72,873.34, 109,217.90 and 39,055.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,873.34 : 109,217.90 = 39,055.31 : x
2. Step 2: Convert to fraction form
   72,873.34/109,217.90 = 39,055.31/x
3. Step 3: Cross multiply
   72,873.34x = 109,217.90 × 39,055.31
4. Step 4: Simplify right side
   72,873.34x = 4,265,538,903.16
5. Step 5: Solve for x
   x = 4,265,538,903.16/72,873.34
6. Step 6: Final answer
   x = 58,533.60