Finding the Fourth Proportional to 72,857.52, 109,116.18 and 56,084.45

Step by Step Solution

1. Step 1: Write the proportion equation
   72,857.52 : 109,116.18 = 56,084.45 : x
2. Step 2: Convert to fraction form
   72,857.52/109,116.18 = 56,084.45/x
3. Step 3: Cross multiply
   72,857.52x = 109,116.18 × 56,084.45
4. Step 4: Simplify right side
   72,857.52x = 6,119,720,395.82
5. Step 5: Solve for x
   x = 6,119,720,395.82/72,857.52
6. Step 6: Final answer
   x = 83,995.73