Finding the Fourth Proportional to 81,510.81, 112,478.73 and 45,694.02

Step by Step Solution

1. Step 1: Write the proportion equation
   81,510.81 : 112,478.73 = 45,694.02 : x
2. Step 2: Convert to fraction form
   81,510.81/112,478.73 = 45,694.02/x
3. Step 3: Cross multiply
   81,510.81x = 112,478.73 × 45,694.02
4. Step 4: Simplify right side
   81,510.81x = 5,139,605,588.64
5. Step 5: Solve for x
   x = 5,139,605,588.64/81,510.81
6. Step 6: Final answer
   x = 63,054.28