Finding the Fourth Proportional to 74,274.16, 111,510.10 and 43,131.76

Step by Step Solution

1. Step 1: Write the proportion equation
   74,274.16 : 111,510.10 = 43,131.76 : x
2. Step 2: Convert to fraction form
   74,274.16/111,510.10 = 43,131.76/x
3. Step 3: Cross multiply
   74,274.16x = 111,510.10 × 43,131.76
4. Step 4: Simplify right side
   74,274.16x = 4,809,626,870.78
5. Step 5: Solve for x
   x = 4,809,626,870.78/74,274.16
6. Step 6: Final answer
   x = 64,755.05