Finding the Fourth Proportional to 476,048.34, 656,928.63 and 272,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   476,048.34 : 656,928.63 = 272,088.72 : x
2. Step 2: Convert to fraction form
   476,048.34/656,928.63 = 272,088.72/x
3. Step 3: Cross multiply
   476,048.34x = 656,928.63 × 272,088.72
4. Step 4: Simplify right side
   476,048.34x = 178,742,870,068.05
5. Step 5: Solve for x
   x = 178,742,870,068.05/476,048.34
6. Step 6: Final answer
   x = 375,472.10