Finding the Fourth Proportional to 109,764.16, 151,475.72 and 64,442.69

Step by Step Solution

1. Step 1: Write the proportion equation
   109,764.16 : 151,475.72 = 64,442.69 : x
2. Step 2: Convert to fraction form
   109,764.16/151,475.72 = 64,442.69/x
3. Step 3: Cross multiply
   109,764.16x = 151,475.72 × 64,442.69
4. Step 4: Simplify right side
   109,764.16x = 9,761,502,717.42
5. Step 5: Solve for x
   x = 9,761,502,717.42/109,764.16
6. Step 6: Final answer
   x = 88,931.60