Finding the Fourth Proportional to 103,667.08, 154,430.71 and 100,530.86

Step by Step Solution

1. Step 1: Write the proportion equation
   103,667.08 : 154,430.71 = 100,530.86 : x
2. Step 2: Convert to fraction form
   103,667.08/154,430.71 = 100,530.86/x
3. Step 3: Cross multiply
   103,667.08x = 154,430.71 × 100,530.86
4. Step 4: Simplify right side
   103,667.08x = 15,525,052,086.71
5. Step 5: Solve for x
   x = 15,525,052,086.71/103,667.08
6. Step 6: Final answer
   x = 149,758.75