Finding the Fourth Proportional to 112,399.77, 155,109.87 and 61,411.41

Step by Step Solution

1. Step 1: Write the proportion equation
   112,399.77 : 155,109.87 = 61,411.41 : x
2. Step 2: Convert to fraction form
   112,399.77/155,109.87 = 61,411.41/x
3. Step 3: Cross multiply
   112,399.77x = 155,109.87 × 61,411.41
4. Step 4: Simplify right side
   112,399.77x = 9,525,514,739.01
5. Step 5: Solve for x
   x = 9,525,514,739.01/112,399.77
6. Step 6: Final answer
   x = 84,746.75