Finding the Fourth Proportional to 76,740.10, 105,901.04 and 42,748.98

Step by Step Solution

1. Step 1: Write the proportion equation
   76,740.10 : 105,901.04 = 42,748.98 : x
2. Step 2: Convert to fraction form
   76,740.10/105,901.04 = 42,748.98/x
3. Step 3: Cross multiply
   76,740.10x = 105,901.04 × 42,748.98
4. Step 4: Simplify right side
   76,740.10x = 4,527,161,440.94
5. Step 5: Solve for x
   x = 4,527,161,440.94/76,740.10
6. Step 6: Final answer
   x = 58,993.43