Finding the Fourth Proportional to 105,076.10, 145,042.42 and 62,055.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,076.10 : 145,042.42 = 62,055.76 : x
2. Step 2: Convert to fraction form
   105,076.10/145,042.42 = 62,055.76/x
3. Step 3: Cross multiply
   105,076.10x = 145,042.42 × 62,055.76
4. Step 4: Simplify right side
   105,076.10x = 9,000,717,605.34
5. Step 5: Solve for x
   x = 9,000,717,605.34/105,076.10
6. Step 6: Final answer
   x = 85,659.04