Finding the Fourth Proportional to 189,710.01, 261,796.63 and 103,667.10

Step by Step Solution

1. Step 1: Write the proportion equation
   189,710.01 : 261,796.63 = 103,667.10 : x
2. Step 2: Convert to fraction form
   189,710.01/261,796.63 = 103,667.10/x
3. Step 3: Cross multiply
   189,710.01x = 261,796.63 × 103,667.10
4. Step 4: Simplify right side
   189,710.01x = 27,139,697,421.87
5. Step 5: Solve for x
   x = 27,139,697,421.87/189,710.01
6. Step 6: Final answer
   x = 143,058.86