Finding the Fourth Proportional to 65,179.28, 89,900.93 and 59,818.99

Step by Step Solution

1. Step 1: Write the proportion equation
   65,179.28 : 89,900.93 = 59,818.99 : x
2. Step 2: Convert to fraction form
   65,179.28/89,900.93 = 59,818.99/x
3. Step 3: Cross multiply
   65,179.28x = 89,900.93 × 59,818.99
4. Step 4: Simplify right side
   65,179.28x = 5,377,782,084.06
5. Step 5: Solve for x
   x = 5,377,782,084.06/65,179.28
6. Step 6: Final answer
   x = 82,507.55