Finding the Fourth Proportional to 78,474.00, 108,292.79 and 42,664.91

Step by Step Solution

1. Step 1: Write the proportion equation
   78,474.00 : 108,292.79 = 42,664.91 : x
2. Step 2: Convert to fraction form
   78,474.00/108,292.79 = 42,664.91/x
3. Step 3: Cross multiply
   78,474.00x = 108,292.79 × 42,664.91
4. Step 4: Simplify right side
   78,474.00x = 4,620,301,761.60
5. Step 5: Solve for x
   x = 4,620,301,761.60/78,474.00
6. Step 6: Final answer
   x = 58,876.85