Finding the Fourth Proportional to 109,188.71, 163,685.59 and 42,613.32

Step by Step Solution

1. Step 1: Write the proportion equation
   109,188.71 : 163,685.59 = 42,613.32 : x
2. Step 2: Convert to fraction form
   109,188.71/163,685.59 = 42,613.32/x
3. Step 3: Cross multiply
   109,188.71x = 163,685.59 × 42,613.32
4. Step 4: Simplify right side
   109,188.71x = 6,975,186,426.06
5. Step 5: Solve for x
   x = 6,975,186,426.06/109,188.71
6. Step 6: Final answer
   x = 63,881.94