Finding the Fourth Proportional to 112,898.66, 155,798.86 and 65,150.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,898.66 : 155,798.86 = 65,150.98 : x
2. Step 2: Convert to fraction form
   112,898.66/155,798.86 = 65,150.98/x
3. Step 3: Cross multiply
   112,898.66x = 155,798.86 × 65,150.98
4. Step 4: Simplify right side
   112,898.66x = 10,150,448,411.88
5. Step 5: Solve for x
   x = 10,150,448,411.88/112,898.66
6. Step 6: Final answer
   x = 89,907.61