Finding the Fourth Proportional to 112,388.55, 168,665.78 and 53,224.12

Step by Step Solution

1. Step 1: Write the proportion equation
   112,388.55 : 168,665.78 = 53,224.12 : x
2. Step 2: Convert to fraction form
   112,388.55/168,665.78 = 53,224.12/x
3. Step 3: Cross multiply
   112,388.55x = 168,665.78 × 53,224.12
4. Step 4: Simplify right side
   112,388.55x = 8,977,087,714.61
5. Step 5: Solve for x
   x = 8,977,087,714.61/112,388.55
6. Step 6: Final answer
   x = 79,875.47