Finding the Fourth Proportional to 76,402.29, 105,436.08 and 42,411.45

Step by Step Solution

1. Step 1: Write the proportion equation
   76,402.29 : 105,436.08 = 42,411.45 : x
2. Step 2: Convert to fraction form
   76,402.29/105,436.08 = 42,411.45/x
3. Step 3: Cross multiply
   76,402.29x = 105,436.08 × 42,411.45
4. Step 4: Simplify right side
   76,402.29x = 4,471,697,035.12
5. Step 5: Solve for x
   x = 4,471,697,035.12/76,402.29
6. Step 6: Final answer
   x = 58,528.31