Finding the Fourth Proportional to 472,109.32, 708,264.69 and 152,279.20

Step by Step Solution

1. Step 1: Write the proportion equation
   472,109.32 : 708,264.69 = 152,279.20 : x
2. Step 2: Convert to fraction form
   472,109.32/708,264.69 = 152,279.20/x
3. Step 3: Cross multiply
   472,109.32x = 708,264.69 × 152,279.20
4. Step 4: Simplify right side
   472,109.32x = 107,853,980,381.45
5. Step 5: Solve for x
   x = 107,853,980,381.45/472,109.32
6. Step 6: Final answer
   x = 228,451.28