Finding the Fourth Proportional to 99,724.02, 149,650.83 and 53,009.70

Step by Step Solution

1. Step 1: Write the proportion equation
   99,724.02 : 149,650.83 = 53,009.70 : x
2. Step 2: Convert to fraction form
   99,724.02/149,650.83 = 53,009.70/x
3. Step 3: Cross multiply
   99,724.02x = 149,650.83 × 53,009.70
4. Step 4: Simplify right side
   99,724.02x = 7,932,945,603.05
5. Step 5: Solve for x
   x = 7,932,945,603.05/99,724.02
6. Step 6: Final answer
   x = 79,549.00