Finding the Fourth Proportional to 81,432.06, 112,382.82 and 45,630.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,432.06 : 112,382.82 = 45,630.06 : x
2. Step 2: Convert to fraction form
   81,432.06/112,382.82 = 45,630.06/x
3. Step 3: Cross multiply
   81,432.06x = 112,382.82 × 45,630.06
4. Step 4: Simplify right side
   81,432.06x = 5,128,034,819.57
5. Step 5: Solve for x
   x = 5,128,034,819.57/81,432.06
6. Step 6: Final answer
   x = 62,973.17