Finding the Fourth Proportional to 109,543.76, 151,181.89 and 64,223.65

Step by Step Solution

1. Step 1: Write the proportion equation
   109,543.76 : 151,181.89 = 64,223.65 : x
2. Step 2: Convert to fraction form
   109,543.76/151,181.89 = 64,223.65/x
3. Step 3: Cross multiply
   109,543.76x = 151,181.89 × 64,223.65
4. Step 4: Simplify right side
   109,543.76x = 9,709,453,179.37
5. Step 5: Solve for x
   x = 9,709,453,179.37/109,543.76
6. Step 6: Final answer
   x = 88,635.38