Finding the Fourth Proportional to 61,978, 93,304.24 and 56,466.76

Step by Step Solution

1. Step 1: Write the proportion equation
   61,978 : 93,304.24 = 56,466.76 : x
2. Step 2: Convert to fraction form
   61,978/93,304.24 = 56,466.76/x
3. Step 3: Cross multiply
   61,978x = 93,304.24 × 56,466.76
4. Step 4: Simplify right side
   61,978x = 5,268,588,127.06
5. Step 5: Solve for x
   x = 5,268,588,127.06/61,978
6. Step 6: Final answer
   x = 85,007.39