Finding the Fourth Proportional to 109,835.87, 151,568.69 and 64,518.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,835.87 : 151,568.69 = 64,518.50 : x
2. Step 2: Convert to fraction form
   109,835.87/151,568.69 = 64,518.50/x
3. Step 3: Cross multiply
   109,835.87x = 151,568.69 × 64,518.50
4. Step 4: Simplify right side
   109,835.87x = 9,778,984,525.77
5. Step 5: Solve for x
   x = 9,778,984,525.77/109,835.87
6. Step 6: Final answer
   x = 89,032.70