Finding the Fourth Proportional to 386,322.06, 579,433.86 and 149,502.72

Step by Step Solution

1. Step 1: Write the proportion equation
   386,322.06 : 579,433.86 = 149,502.72 : x
2. Step 2: Convert to fraction form
   386,322.06/579,433.86 = 149,502.72/x
3. Step 3: Cross multiply
   386,322.06x = 579,433.86 × 149,502.72
4. Step 4: Simplify right side
   386,322.06x = 86,626,938,130.10
5. Step 5: Solve for x
   x = 86,626,938,130.10/386,322.06
6. Step 6: Final answer
   x = 224,235.03