Finding the Fourth Proportional to 105,035.47, 144,948.86 and 57,288.67

Step by Step Solution

1. Step 1: Write the proportion equation
   105,035.47 : 144,948.86 = 57,288.67 : x
2. Step 2: Convert to fraction form
   105,035.47/144,948.86 = 57,288.67/x
3. Step 3: Cross multiply
   105,035.47x = 144,948.86 × 57,288.67
4. Step 4: Simplify right side
   105,035.47x = 8,303,927,407.42
5. Step 5: Solve for x
   x = 8,303,927,407.42/105,035.47
6. Step 6: Final answer
   x = 79,058.32