Finding the Fourth Proportional to 58,904.88, 81,176.76 and 42,108.72

Step by Step Solution

1. Step 1: Write the proportion equation
   58,904.88 : 81,176.76 = 42,108.72 : x
2. Step 2: Convert to fraction form
   58,904.88/81,176.76 = 42,108.72/x
3. Step 3: Cross multiply
   58,904.88x = 81,176.76 × 42,108.72
4. Step 4: Simplify right side
   58,904.88x = 3,418,249,457.35
5. Step 5: Solve for x
   x = 3,418,249,457.35/58,904.88
6. Step 6: Final answer
   x = 58,029.99