Finding the Fourth Proportional to 61,009.98, 83,939.67 and 53,808.54

Step by Step Solution

1. Step 1: Write the proportion equation
   61,009.98 : 83,939.67 = 53,808.54 : x
2. Step 2: Convert to fraction form
   61,009.98/83,939.67 = 53,808.54/x
3. Step 3: Cross multiply
   61,009.98x = 83,939.67 × 53,808.54
4. Step 4: Simplify right side
   61,009.98x = 4,516,671,090.78
5. Step 5: Solve for x
   x = 4,516,671,090.78/61,009.98
6. Step 6: Final answer
   x = 74,031.68