Finding the Fourth Proportional to 81,434.76, 112,384.59 and 45,636.32

Step by Step Solution

1. Step 1: Write the proportion equation
   81,434.76 : 112,384.59 = 45,636.32 : x
2. Step 2: Convert to fraction form
   81,434.76/112,384.59 = 45,636.32/x
3. Step 3: Cross multiply
   81,434.76x = 112,384.59 × 45,636.32
4. Step 4: Simplify right side
   81,434.76x = 5,128,818,550.39
5. Step 5: Solve for x
   x = 5,128,818,550.39/81,434.76
6. Step 6: Final answer
   x = 62,980.70