Finding the Fourth Proportional to 76,440.16, 114,630.72 and 29,686.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,440.16 : 114,630.72 = 29,686.72 : x
2. Step 2: Convert to fraction form
   76,440.16/114,630.72 = 29,686.72/x
3. Step 3: Cross multiply
   76,440.16x = 114,630.72 × 29,686.72
4. Step 4: Simplify right side
   76,440.16x = 3,403,010,088.04
5. Step 5: Solve for x
   x = 3,403,010,088.04/76,440.16
6. Step 6: Final answer
   x = 44,518.62