Finding the Fourth Proportional to 42,346.79, 63,531.80 and 34,429.61

Step by Step Solution

1. Step 1: Write the proportion equation
   42,346.79 : 63,531.80 = 34,429.61 : x
2. Step 2: Convert to fraction form
   42,346.79/63,531.80 = 34,429.61/x
3. Step 3: Cross multiply
   42,346.79x = 63,531.80 × 34,429.61
4. Step 4: Simplify right side
   42,346.79x = 2,187,375,096.60
5. Step 5: Solve for x
   x = 2,187,375,096.60/42,346.79
6. Step 6: Final answer
   x = 51,653.86