Finding the Fourth Proportional to 106,385.81, 146,872.37 and 70,624.71

Step by Step Solution

1. Step 1: Write the proportion equation
   106,385.81 : 146,872.37 = 70,624.71 : x
2. Step 2: Convert to fraction form
   106,385.81/146,872.37 = 70,624.71/x
3. Step 3: Cross multiply
   106,385.81x = 146,872.37 × 70,624.71
4. Step 4: Simplify right side
   106,385.81x = 10,372,818,714.82
5. Step 5: Solve for x
   x = 10,372,818,714.82/106,385.81
6. Step 6: Final answer
   x = 97,501.91