Finding the Fourth Proportional to 58,384.84, 80,896.54 and 57,123.68

Step by Step Solution

1. Step 1: Write the proportion equation
   58,384.84 : 80,896.54 = 57,123.68 : x
2. Step 2: Convert to fraction form
   58,384.84/80,896.54 = 57,123.68/x
3. Step 3: Cross multiply
   58,384.84x = 80,896.54 × 57,123.68
4. Step 4: Simplify right side
   58,384.84x = 4,621,108,064.07
5. Step 5: Solve for x
   x = 4,621,108,064.07/58,384.84
6. Step 6: Final answer
   x = 79,149.11