Finding the Fourth Proportional to 81,382.42, 112,300.45 and 45,564.81

Step by Step Solution

1. Step 1: Write the proportion equation
   81,382.42 : 112,300.45 = 45,564.81 : x
2. Step 2: Convert to fraction form
   81,382.42/112,300.45 = 45,564.81/x
3. Step 3: Cross multiply
   81,382.42x = 112,300.45 × 45,564.81
4. Step 4: Simplify right side
   81,382.42x = 5,116,948,667.16
5. Step 5: Solve for x
   x = 5,116,948,667.16/81,382.42
6. Step 6: Final answer
   x = 62,875.36