Finding the Fourth Proportional to 138,150.34, 207,225.48 and 98,784.34

Step by Step Solution

1. Step 1: Write the proportion equation
   138,150.34 : 207,225.48 = 98,784.34 : x
2. Step 2: Convert to fraction form
   138,150.34/207,225.48 = 98,784.34/x
3. Step 3: Cross multiply
   138,150.34x = 207,225.48 × 98,784.34
4. Step 4: Simplify right side
   138,150.34x = 20,470,632,272.98
5. Step 5: Solve for x
   x = 20,470,632,272.98/138,150.34
6. Step 6: Final answer
   x = 148,176.49