Finding the Fourth Proportional to 107,490.68, 148,378.46 and 71,667.62

Step by Step Solution

1. Step 1: Write the proportion equation
   107,490.68 : 148,378.46 = 71,667.62 : x
2. Step 2: Convert to fraction form
   107,490.68/148,378.46 = 71,667.62/x
3. Step 3: Cross multiply
   107,490.68x = 148,378.46 × 71,667.62
4. Step 4: Simplify right side
   107,490.68x = 10,633,931,087.47
5. Step 5: Solve for x
   x = 10,633,931,087.47/107,490.68
6. Step 6: Final answer
   x = 98,928.87