Finding the Fourth Proportional to 76,405.34, 105,437.70 and 42,411.84

Step by Step Solution

1. Step 1: Write the proportion equation
   76,405.34 : 105,437.70 = 42,411.84 : x
2. Step 2: Convert to fraction form
   76,405.34/105,437.70 = 42,411.84/x
3. Step 3: Cross multiply
   76,405.34x = 105,437.70 × 42,411.84
4. Step 4: Simplify right side
   76,405.34x = 4,471,806,862.37
5. Step 5: Solve for x
   x = 4,471,806,862.37/76,405.34
6. Step 6: Final answer
   x = 58,527.41