Finding the Fourth Proportional to 109,980.29, 151,776.17 and 64,649.96

Step by Step Solution

1. Step 1: Write the proportion equation
   109,980.29 : 151,776.17 = 64,649.96 : x
2. Step 2: Convert to fraction form
   109,980.29/151,776.17 = 64,649.96/x
3. Step 3: Cross multiply
   109,980.29x = 151,776.17 × 64,649.96
4. Step 4: Simplify right side
   109,980.29x = 9,812,323,319.45
5. Step 5: Solve for x
   x = 9,812,323,319.45/109,980.29
6. Step 6: Final answer
   x = 89,218.93