Finding the Fourth Proportional to 58,780.05, 88,131.72 and 21,333.03

Step by Step Solution

1. Step 1: Write the proportion equation
   58,780.05 : 88,131.72 = 21,333.03 : x
2. Step 2: Convert to fraction form
   58,780.05/88,131.72 = 21,333.03/x
3. Step 3: Cross multiply
   58,780.05x = 88,131.72 × 21,333.03
4. Step 4: Simplify right side
   58,780.05x = 1,880,116,626.71
5. Step 5: Solve for x
   x = 1,880,116,626.71/58,780.05
6. Step 6: Final answer
   x = 31,985.62