Finding the Fourth Proportional to 72,734.60, 109,155.98 and 54,058.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,734.60 : 109,155.98 = 54,058.12 : x
2. Step 2: Convert to fraction form
   72,734.60/109,155.98 = 54,058.12/x
3. Step 3: Cross multiply
   72,734.60x = 109,155.98 × 54,058.12
4. Step 4: Simplify right side
   72,734.60x = 5,900,767,065.56
5. Step 5: Solve for x
   x = 5,900,767,065.56/72,734.60
6. Step 6: Final answer
   x = 81,127.37