Finding the Fourth Proportional to 76,631.33, 105,799.82 and 52,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,631.33 : 105,799.82 = 52,472.72 : x
2. Step 2: Convert to fraction form
   76,631.33/105,799.82 = 52,472.72/x
3. Step 3: Cross multiply
   76,631.33x = 105,799.82 × 52,472.72
4. Step 4: Simplify right side
   76,631.33x = 5,551,603,539.55
5. Step 5: Solve for x
   x = 5,551,603,539.55/76,631.33
6. Step 6: Final answer
   x = 72,445.62