Finding the Fourth Proportional to 148,300.79, 204,664.05 and 90,946.71

Step by Step Solution

1. Step 1: Write the proportion equation
   148,300.79 : 204,664.05 = 90,946.71 : x
2. Step 2: Convert to fraction form
   148,300.79/204,664.05 = 90,946.71/x
3. Step 3: Cross multiply
   148,300.79x = 204,664.05 × 90,946.71
4. Step 4: Simplify right side
   148,300.79x = 18,613,522,002.78
5. Step 5: Solve for x
   x = 18,613,522,002.78/148,300.79
6. Step 6: Final answer
   x = 125,511.96