Finding the Fourth Proportional to 113,638.74, 156,814.35 and 62,648.82

Step by Step Solution

1. Step 1: Write the proportion equation
   113,638.74 : 156,814.35 = 62,648.82 : x
2. Step 2: Convert to fraction form
   113,638.74/156,814.35 = 62,648.82/x
3. Step 3: Cross multiply
   113,638.74x = 156,814.35 × 62,648.82
4. Step 4: Simplify right side
   113,638.74x = 9,824,233,986.57
5. Step 5: Solve for x
   x = 9,824,233,986.57/113,638.74
6. Step 6: Final answer
   x = 86,451.45