Finding the Fourth Proportional to 105,583.08, 145,700.72 and 57,836.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,583.08 : 145,700.72 = 57,836.82 : x
2. Step 2: Convert to fraction form
   105,583.08/145,700.72 = 57,836.82/x
3. Step 3: Cross multiply
   105,583.08x = 145,700.72 × 57,836.82
4. Step 4: Simplify right side
   105,583.08x = 8,426,866,316.51
5. Step 5: Solve for x
   x = 8,426,866,316.51/105,583.08
6. Step 6: Final answer
   x = 79,812.66