Finding the Fourth Proportional to 55,329, 76,356.72 and 31,137.52

Step by Step Solution

1. Step 1: Write the proportion equation
   55,329 : 76,356.72 = 31,137.52 : x
2. Step 2: Convert to fraction form
   55,329/76,356.72 = 31,137.52/x
3. Step 3: Cross multiply
   55,329x = 76,356.72 × 31,137.52
4. Step 4: Simplify right side
   55,329x = 2,377,558,896.13
5. Step 5: Solve for x
   x = 2,377,558,896.13/55,329
6. Step 6: Final answer
   x = 42,971.30