Finding the Fourth Proportional to 71,588.31, 98,723.88 and 42,903.78

Step by Step Solution

1. Step 1: Write the proportion equation
   71,588.31 : 98,723.88 = 42,903.78 : x
2. Step 2: Convert to fraction form
   71,588.31/98,723.88 = 42,903.78/x
3. Step 3: Cross multiply
   71,588.31x = 98,723.88 × 42,903.78
4. Step 4: Simplify right side
   71,588.31x = 4,235,627,628.27
5. Step 5: Solve for x
   x = 4,235,627,628.27/71,588.31
6. Step 6: Final answer
   x = 59,166.47