Finding the Fourth Proportional to 72,671.30, 101,973.10 and 72,671.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,671.30 : 101,973.10 = 72,671.30 : x
2. Step 2: Convert to fraction form
   72,671.30/101,973.10 = 72,671.30/x
3. Step 3: Cross multiply
   72,671.30x = 101,973.10 × 72,671.30
4. Step 4: Simplify right side
   72,671.30x = 7,410,517,742.03
5. Step 5: Solve for x
   x = 7,410,517,742.03/72,671.30
6. Step 6: Final answer
   x = 101,973.10