Finding the Fourth Proportional to 112,743.50, 155,590.89 and 62,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,743.50 : 155,590.89 = 62,442.50 : x
2. Step 2: Convert to fraction form
   112,743.50/155,590.89 = 62,442.50/x
3. Step 3: Cross multiply
   112,743.50x = 155,590.89 × 62,442.50
4. Step 4: Simplify right side
   112,743.50x = 9,715,484,148.83
5. Step 5: Solve for x
   x = 9,715,484,148.83/112,743.50
6. Step 6: Final answer
   x = 86,173.34