Finding the Fourth Proportional to 112,417.72, 155,136.47 and 62,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,417.72 : 155,136.47 = 62,116.72 : x
2. Step 2: Convert to fraction form
   112,417.72/155,136.47 = 62,116.72/x
3. Step 3: Cross multiply
   112,417.72x = 155,136.47 × 62,116.72
4. Step 4: Simplify right side
   112,417.72x = 9,636,567,970.35
5. Step 5: Solve for x
   x = 9,636,567,970.35/112,417.72
6. Step 6: Final answer
   x = 85,721.08