Finding the Fourth Proportional to 112,816.05, 155,685.83 and 62,515.05

Step by Step Solution

1. Step 1: Write the proportion equation
   112,816.05 : 155,685.83 = 62,515.05 : x
2. Step 2: Convert to fraction form
   112,816.05/155,685.83 = 62,515.05/x
3. Step 3: Cross multiply
   112,816.05x = 155,685.83 × 62,515.05
4. Step 4: Simplify right side
   112,816.05x = 9,732,707,134.17
5. Step 5: Solve for x
   x = 9,732,707,134.17/112,816.05
6. Step 6: Final answer
   x = 86,270.59