Finding the Fourth Proportional to 103,111.11, 142,280.69 and 62,810.24

Step by Step Solution

1. Step 1: Write the proportion equation
   103,111.11 : 142,280.69 = 62,810.24 : x
2. Step 2: Convert to fraction form
   103,111.11/142,280.69 = 62,810.24/x
3. Step 3: Cross multiply
   103,111.11x = 142,280.69 × 62,810.24
4. Step 4: Simplify right side
   103,111.11x = 8,936,683,260.81
5. Step 5: Solve for x
   x = 8,936,683,260.81/103,111.11
6. Step 6: Final answer
   x = 86,670.42