Finding the Fourth Proportional to 81,212.58, 112,075.83 and 45,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,212.58 : 112,075.83 = 45,404.10 : x
2. Step 2: Convert to fraction form
   81,212.58/112,075.83 = 45,404.10/x
3. Step 3: Cross multiply
   81,212.58x = 112,075.83 × 45,404.10
4. Step 4: Simplify right side
   81,212.58x = 5,088,702,192.90
5. Step 5: Solve for x
   x = 5,088,702,192.90/81,212.58
6. Step 6: Final answer
   x = 62,659.04