Finding the Fourth Proportional to 99,764.52, 149,711.58 and 53,050.20

Step by Step Solution

1. Step 1: Write the proportion equation
   99,764.52 : 149,711.58 = 53,050.20 : x
2. Step 2: Convert to fraction form
   99,764.52/149,711.58 = 53,050.20/x
3. Step 3: Cross multiply
   99,764.52x = 149,711.58 × 53,050.20
4. Step 4: Simplify right side
   99,764.52x = 7,942,229,261.32
5. Step 5: Solve for x
   x = 7,942,229,261.32/99,764.52
6. Step 6: Final answer
   x = 79,609.76