Finding the Fourth Proportional to 42,415.29, 63,539.72 and 34,526.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,415.29 : 63,539.72 = 34,526.30 : x
2. Step 2: Convert to fraction form
   42,415.29/63,539.72 = 34,526.30/x
3. Step 3: Cross multiply
   42,415.29x = 63,539.72 × 34,526.30
4. Step 4: Simplify right side
   42,415.29x = 2,193,790,944.31
5. Step 5: Solve for x
   x = 2,193,790,944.31/42,415.29
6. Step 6: Final answer
   x = 51,721.70