Finding the Fourth Proportional to 112,487, 155,235.30 and 62,189.24

Step by Step Solution

1. Step 1: Write the proportion equation
   112,487 : 155,235.30 = 62,189.24 : x
2. Step 2: Convert to fraction form
   112,487/155,235.30 = 62,189.24/x
3. Step 3: Cross multiply
   112,487x = 155,235.30 × 62,189.24
4. Step 4: Simplify right side
   112,487x = 9,653,965,328.17
5. Step 5: Solve for x
   x = 9,653,965,328.17/112,487
6. Step 6: Final answer
   x = 85,822.94