Finding the Fourth Proportional to 89,462.25, 123,444.56 and 51,215.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,462.25 : 123,444.56 = 51,215.76 : x
2. Step 2: Convert to fraction form
   89,462.25/123,444.56 = 51,215.76/x
3. Step 3: Cross multiply
   89,462.25x = 123,444.56 × 51,215.76
4. Step 4: Simplify right side
   89,462.25x = 6,322,307,086.31
5. Step 5: Solve for x
   x = 6,322,307,086.31/89,462.25
6. Step 6: Final answer
   x = 70,670.11