Finding the Fourth Proportional to 59,415, 81,979.91 and 35,223.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,415 : 81,979.91 = 35,223.60 : x
2. Step 2: Convert to fraction form
   59,415/81,979.91 = 35,223.60/x
3. Step 3: Cross multiply
   59,415x = 81,979.91 × 35,223.60
4. Step 4: Simplify right side
   59,415x = 2,887,627,381.76
5. Step 5: Solve for x
   x = 2,887,627,381.76/59,415
6. Step 6: Final answer
   x = 48,600.98