Finding the Fourth Proportional to 76,520.38, 105,598.02 and 42,527.80

Step by Step Solution

1. Step 1: Write the proportion equation
   76,520.38 : 105,598.02 = 42,527.80 : x
2. Step 2: Convert to fraction form
   76,520.38/105,598.02 = 42,527.80/x
3. Step 3: Cross multiply
   76,520.38x = 105,598.02 × 42,527.80
4. Step 4: Simplify right side
   76,520.38x = 4,490,851,474.96
5. Step 5: Solve for x
   x = 4,490,851,474.96/76,520.38
6. Step 6: Final answer
   x = 58,688.31