Finding the Fourth Proportional to 67,690.31, 101,628.63 and 34,432.88

Step by Step Solution

1. Step 1: Write the proportion equation
   67,690.31 : 101,628.63 = 34,432.88 : x
2. Step 2: Convert to fraction form
   67,690.31/101,628.63 = 34,432.88/x
3. Step 3: Cross multiply
   67,690.31x = 101,628.63 × 34,432.88
4. Step 4: Simplify right side
   67,690.31x = 3,499,365,913.21
5. Step 5: Solve for x
   x = 3,499,365,913.21/67,690.31
6. Step 6: Final answer
   x = 51,696.71