Finding the Fourth Proportional to 140,444.72, 193,814.38 and 76,782.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,444.72 : 193,814.38 = 76,782.50 : x
2. Step 2: Convert to fraction form
   140,444.72/193,814.38 = 76,782.50/x
3. Step 3: Cross multiply
   140,444.72x = 193,814.38 × 76,782.50
4. Step 4: Simplify right side
   140,444.72x = 14,881,552,632.35
5. Step 5: Solve for x
   x = 14,881,552,632.35/140,444.72
6. Step 6: Final answer
   x = 105,960.21