Finding the Fourth Proportional to 109,776.90, 151,484.25 and 64,456.86

Step by Step Solution

1. Step 1: Write the proportion equation
   109,776.90 : 151,484.25 = 64,456.86 : x
2. Step 2: Convert to fraction form
   109,776.90/151,484.25 = 64,456.86/x
3. Step 3: Cross multiply
   109,776.90x = 151,484.25 × 64,456.86
4. Step 4: Simplify right side
   109,776.90x = 9,764,199,094.46
5. Step 5: Solve for x
   x = 9,764,199,094.46/109,776.90
6. Step 6: Final answer
   x = 88,945.84