Finding the Fourth Proportional to 42,155.71, 58,065.84 and 29,386.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,155.71 : 58,065.84 = 29,386.12 : x
2. Step 2: Convert to fraction form
   42,155.71/58,065.84 = 29,386.12/x
3. Step 3: Cross multiply
   42,155.71x = 58,065.84 × 29,386.12
4. Step 4: Simplify right side
   42,155.71x = 1,706,329,742.14
5. Step 5: Solve for x
   x = 1,706,329,742.14/42,155.71
6. Step 6: Final answer
   x = 40,476.84