Finding the Fourth Proportional to 77,460.57, 116,178.71 and 21,304.89

Step by Step Solution

1. Step 1: Write the proportion equation
   77,460.57 : 116,178.71 = 21,304.89 : x
2. Step 2: Convert to fraction form
   77,460.57/116,178.71 = 21,304.89/x
3. Step 3: Cross multiply
   77,460.57x = 116,178.71 × 21,304.89
4. Step 4: Simplify right side
   77,460.57x = 2,475,174,530.37
5. Step 5: Solve for x
   x = 2,475,174,530.37/77,460.57
6. Step 6: Final answer
   x = 31,953.99