Finding the Fourth Proportional to 64,003.67, 88,259.51 and 42,485.81

Step by Step Solution

1. Step 1: Write the proportion equation
   64,003.67 : 88,259.51 = 42,485.81 : x
2. Step 2: Convert to fraction form
   64,003.67/88,259.51 = 42,485.81/x
3. Step 3: Cross multiply
   64,003.67x = 88,259.51 × 42,485.81
4. Step 4: Simplify right side
   64,003.67x = 3,749,777,099.42
5. Step 5: Solve for x
   x = 3,749,777,099.42/64,003.67
6. Step 6: Final answer
   x = 58,586.91