Finding the Fourth Proportional to 109,527.69, 164,291.55 and 42,999.15

Step by Step Solution

1. Step 1: Write the proportion equation
   109,527.69 : 164,291.55 = 42,999.15 : x
2. Step 2: Convert to fraction form
   109,527.69/164,291.55 = 42,999.15/x
3. Step 3: Cross multiply
   109,527.69x = 164,291.55 × 42,999.15
4. Step 4: Simplify right side
   109,527.69x = 7,064,397,002.18
5. Step 5: Solve for x
   x = 7,064,397,002.18/109,527.69
6. Step 6: Final answer
   x = 64,498.73