Finding the Fourth Proportional to 109,311.61, 164,060.88 and 42,798.45

Step by Step Solution

1. Step 1: Write the proportion equation
   109,311.61 : 164,060.88 = 42,798.45 : x
2. Step 2: Convert to fraction form
   109,311.61/164,060.88 = 42,798.45/x
3. Step 3: Cross multiply
   109,311.61x = 164,060.88 × 42,798.45
4. Step 4: Simplify right side
   109,311.61x = 7,021,551,369.64
5. Step 5: Solve for x
   x = 7,021,551,369.64/109,311.61
6. Step 6: Final answer
   x = 64,234.27