Finding the Fourth Proportional to 109,917.94, 151,678.15 and 64,597.63

Step by Step Solution

1. Step 1: Write the proportion equation
   109,917.94 : 151,678.15 = 64,597.63 : x
2. Step 2: Convert to fraction form
   109,917.94/151,678.15 = 64,597.63/x
3. Step 3: Cross multiply
   109,917.94x = 151,678.15 × 64,597.63
4. Step 4: Simplify right side
   109,917.94x = 9,798,049,012.78
5. Step 5: Solve for x
   x = 9,798,049,012.78/109,917.94
6. Step 6: Final answer
   x = 89,139.67