Finding the Fourth Proportional to 52,623.06, 78,550.72 and 45,979.98

Step by Step Solution

1. Step 1: Write the proportion equation
   52,623.06 : 78,550.72 = 45,979.98 : x
2. Step 2: Convert to fraction form
   52,623.06/78,550.72 = 45,979.98/x
3. Step 3: Cross multiply
   52,623.06x = 78,550.72 × 45,979.98
4. Step 4: Simplify right side
   52,623.06x = 3,611,760,534.59
5. Step 5: Solve for x
   x = 3,611,760,534.59/52,623.06
6. Step 6: Final answer
   x = 68,634.56