Finding the Fourth Proportional to 81,969.72, 113,115.15 and 45,670.32

Step by Step Solution

1. Step 1: Write the proportion equation
   81,969.72 : 113,115.15 = 45,670.32 : x
2. Step 2: Convert to fraction form
   81,969.72/113,115.15 = 45,670.32/x
3. Step 3: Cross multiply
   81,969.72x = 113,115.15 × 45,670.32
4. Step 4: Simplify right side
   81,969.72x = 5,166,005,097.35
5. Step 5: Solve for x
   x = 5,166,005,097.35/81,969.72
6. Step 6: Final answer
   x = 63,023.33