Finding the Fourth Proportional to 109,978.29, 151,773.41 and 64,647.96

Step by Step Solution

1. Step 1: Write the proportion equation
   109,978.29 : 151,773.41 = 64,647.96 : x
2. Step 2: Convert to fraction form
   109,978.29/151,773.41 = 64,647.96/x
3. Step 3: Cross multiply
   109,978.29x = 151,773.41 × 64,647.96
4. Step 4: Simplify right side
   109,978.29x = 9,811,841,338.74
5. Step 5: Solve for x
   x = 9,811,841,338.74/109,978.29
6. Step 6: Final answer
   x = 89,216.17