Finding the Fourth Proportional to 105,100.65, 145,034.43 and 59,772.30

Step by Step Solution

1. Step 1: Write the proportion equation
   105,100.65 : 145,034.43 = 59,772.30 : x
2. Step 2: Convert to fraction form
   105,100.65/145,034.43 = 59,772.30/x
3. Step 3: Cross multiply
   105,100.65x = 145,034.43 × 59,772.30
4. Step 4: Simplify right side
   105,100.65x = 8,669,041,460.29
5. Step 5: Solve for x
   x = 8,669,041,460.29/105,100.65
6. Step 6: Final answer
   x = 82,483.23