Finding the Fourth Proportional to 81,929.57, 113,061.62 and 45,630.77

Step by Step Solution

1. Step 1: Write the proportion equation
   81,929.57 : 113,061.62 = 45,630.77 : x
2. Step 2: Convert to fraction form
   81,929.57/113,061.62 = 45,630.77/x
3. Step 3: Cross multiply
   81,929.57x = 113,061.62 × 45,630.77
4. Step 4: Simplify right side
   81,929.57x = 5,159,088,326.82
5. Step 5: Solve for x
   x = 5,159,088,326.82/81,929.57
6. Step 6: Final answer
   x = 62,969.80