Finding the Fourth Proportional to 105,484.01, 145,567.46 and 57,737.21

Step by Step Solution

1. Step 1: Write the proportion equation
   105,484.01 : 145,567.46 = 57,737.21 : x
2. Step 2: Convert to fraction form
   105,484.01/145,567.46 = 57,737.21/x
3. Step 3: Cross multiply
   105,484.01x = 145,567.46 × 57,737.21
4. Step 4: Simplify right side
   105,484.01x = 8,404,658,423.69
5. Step 5: Solve for x
   x = 8,404,658,423.69/105,484.01
6. Step 6: Final answer
   x = 79,677.09