Finding the Fourth Proportional to 59,659.84, 89,444.88 and 51,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   59,659.84 : 89,444.88 = 51,436.72 : x
2. Step 2: Convert to fraction form
   59,659.84/89,444.88 = 51,436.72/x
3. Step 3: Cross multiply
   59,659.84x = 89,444.88 × 51,436.72
4. Step 4: Simplify right side
   59,659.84x = 4,600,751,247.99
5. Step 5: Solve for x
   x = 4,600,751,247.99/59,659.84
6. Step 6: Final answer
   x = 77,116.39