Finding the Fourth Proportional to 81,493.86, 112,461.39 and 45,683.90

Step by Step Solution

1. Step 1: Write the proportion equation
   81,493.86 : 112,461.39 = 45,683.90 : x
2. Step 2: Convert to fraction form
   81,493.86/112,461.39 = 45,683.90/x
3. Step 3: Cross multiply
   81,493.86x = 112,461.39 × 45,683.90
4. Step 4: Simplify right side
   81,493.86x = 5,137,674,332.31
5. Step 5: Solve for x
   x = 5,137,674,332.31/81,493.86
6. Step 6: Final answer
   x = 63,043.70