Finding the Fourth Proportional to 58,051.91, 87,090.18 and 18,636.71

Step by Step Solution

1. Step 1: Write the proportion equation
   58,051.91 : 87,090.18 = 18,636.71 : x
2. Step 2: Convert to fraction form
   58,051.91/87,090.18 = 18,636.71/x
3. Step 3: Cross multiply
   58,051.91x = 87,090.18 × 18,636.71
4. Step 4: Simplify right side
   58,051.91x = 1,623,074,428.51
5. Step 5: Solve for x
   x = 1,623,074,428.51/58,051.91
6. Step 6: Final answer
   x = 27,959.02