Finding the Fourth Proportional to 56,146.50, 77,482.32 and 30,996

Step by Step Solution

1. Step 1: Write the proportion equation
   56,146.50 : 77,482.32 = 30,996 : x
2. Step 2: Convert to fraction form
   56,146.50/77,482.32 = 30,996/x
3. Step 3: Cross multiply
   56,146.50x = 77,482.32 × 30,996
4. Step 4: Simplify right side
   56,146.50x = 2,401,641,990.72
5. Step 5: Solve for x
   x = 2,401,641,990.72/56,146.50
6. Step 6: Final answer
   x = 42,774.56