Finding the Fourth Proportional to 76,384.08, 105,409.89 and 42,392.99

Step by Step Solution

1. Step 1: Write the proportion equation
   76,384.08 : 105,409.89 = 42,392.99 : x
2. Step 2: Convert to fraction form
   76,384.08/105,409.89 = 42,392.99/x
3. Step 3: Cross multiply
   76,384.08x = 105,409.89 × 42,392.99
4. Step 4: Simplify right side
   76,384.08x = 4,468,640,083.27
5. Step 5: Solve for x
   x = 4,468,640,083.27/76,384.08
6. Step 6: Final answer
   x = 58,502.24