Finding the Fourth Proportional to 53,153.00, 79,729.62 and 49,905.31

Step by Step Solution

1. Step 1: Write the proportion equation
   53,153.00 : 79,729.62 = 49,905.31 : x
2. Step 2: Convert to fraction form
   53,153.00/79,729.62 = 49,905.31/x
3. Step 3: Cross multiply
   53,153.00x = 79,729.62 × 49,905.31
4. Step 4: Simplify right side
   53,153.00x = 3,978,931,165.31
5. Step 5: Solve for x
   x = 3,978,931,165.31/53,153.00
6. Step 6: Final answer
   x = 74,858.07