Finding the Fourth Proportional to 56,164.04, 77,505.90 and 31,013

Step by Step Solution

1. Step 1: Write the proportion equation
   56,164.04 : 77,505.90 = 31,013 : x
2. Step 2: Convert to fraction form
   56,164.04/77,505.90 = 31,013/x
3. Step 3: Cross multiply
   56,164.04x = 77,505.90 × 31,013
4. Step 4: Simplify right side
   56,164.04x = 2,403,690,476.70
5. Step 5: Solve for x
   x = 2,403,690,476.70/56,164.04
6. Step 6: Final answer
   x = 42,797.68