Finding the Fourth Proportional to 113,300.78, 156,356.79 and 62,315.69

Step by Step Solution

1. Step 1: Write the proportion equation
   113,300.78 : 156,356.79 = 62,315.69 : x
2. Step 2: Convert to fraction form
   113,300.78/156,356.79 = 62,315.69/x
3. Step 3: Cross multiply
   113,300.78x = 156,356.79 × 62,315.69
4. Step 4: Simplify right side
   113,300.78x = 9,743,481,255.04
5. Step 5: Solve for x
   x = 9,743,481,255.04/113,300.78
6. Step 6: Final answer
   x = 85,996.59