Finding the Fourth Proportional to 105,762.42, 158,502.67 and 55,830.78

Step by Step Solution

1. Step 1: Write the proportion equation
   105,762.42 : 158,502.67 = 55,830.78 : x
2. Step 2: Convert to fraction form
   105,762.42/158,502.67 = 55,830.78/x
3. Step 3: Cross multiply
   105,762.42x = 158,502.67 × 55,830.78
4. Step 4: Simplify right side
   105,762.42x = 8,849,327,698.18
5. Step 5: Solve for x
   x = 8,849,327,698.18/105,762.42
6. Step 6: Final answer
   x = 83,671.76