Finding the Fourth Proportional to 109,061.96, 150,509.85 and 61,315.16

Step by Step Solution

1. Step 1: Write the proportion equation
   109,061.96 : 150,509.85 = 61,315.16 : x
2. Step 2: Convert to fraction form
   109,061.96/150,509.85 = 61,315.16/x
3. Step 3: Cross multiply
   109,061.96x = 150,509.85 × 61,315.16
4. Step 4: Simplify right side
   109,061.96x = 9,228,535,534.33
5. Step 5: Solve for x
   x = 9,228,535,534.33/109,061.96
6. Step 6: Final answer
   x = 84,617.36