Finding the Fourth Proportional to 58,100.76, 87,189.93 and 21,164.76

Step by Step Solution

1. Step 1: Write the proportion equation
   58,100.76 : 87,189.93 = 21,164.76 : x
2. Step 2: Convert to fraction form
   58,100.76/87,189.93 = 21,164.76/x
3. Step 3: Cross multiply
   58,100.76x = 87,189.93 × 21,164.76
4. Step 4: Simplify right side
   58,100.76x = 1,845,353,942.87
5. Step 5: Solve for x
   x = 1,845,353,942.87/58,100.76
6. Step 6: Final answer
   x = 31,761.27