Finding the Fourth Proportional to 123,991.01, 171,126.27 and 75,621.00

Step by Step Solution

1. Step 1: Write the proportion equation
   123,991.01 : 171,126.27 = 75,621.00 : x
2. Step 2: Convert to fraction form
   123,991.01/171,126.27 = 75,621.00/x
3. Step 3: Cross multiply
   123,991.01x = 171,126.27 × 75,621.00
4. Step 4: Simplify right side
   123,991.01x = 12,940,739,342.81
5. Step 5: Solve for x
   x = 12,940,739,342.81/123,991.01
6. Step 6: Final answer
   x = 104,368.37