Finding the Fourth Proportional to 76,709.00, 105,803.89 and 51,202.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,709.00 : 105,803.89 = 51,202.50 : x
2. Step 2: Convert to fraction form
   76,709.00/105,803.89 = 51,202.50/x
3. Step 3: Cross multiply
   76,709.00x = 105,803.89 × 51,202.50
4. Step 4: Simplify right side
   76,709.00x = 5,417,423,421.71
5. Step 5: Solve for x
   x = 5,417,423,421.71/76,709.00
6. Step 6: Final answer
   x = 70,623.05