Finding the Fourth Proportional to 81,196.70, 112,051.05 and 45,386.60

Step by Step Solution

1. Step 1: Write the proportion equation
   81,196.70 : 112,051.05 = 45,386.60 : x
2. Step 2: Convert to fraction form
   81,196.70/112,051.05 = 45,386.60/x
3. Step 3: Cross multiply
   81,196.70x = 112,051.05 × 45,386.60
4. Step 4: Simplify right side
   81,196.70x = 5,085,616,185.93
5. Step 5: Solve for x
   x = 5,085,616,185.93/81,196.70
6. Step 6: Final answer
   x = 62,633.29