Finding the Fourth Proportional to 109,777.16, 151,484.54 and 64,457

Step by Step Solution

1. Step 1: Write the proportion equation
   109,777.16 : 151,484.54 = 64,457 : x
2. Step 2: Convert to fraction form
   109,777.16/151,484.54 = 64,457/x
3. Step 3: Cross multiply
   109,777.16x = 151,484.54 × 64,457
4. Step 4: Simplify right side
   109,777.16x = 9,764,238,994.78
5. Step 5: Solve for x
   x = 9,764,238,994.78/109,777.16
6. Step 6: Final answer
   x = 88,946.00