Finding the Fourth Proportional to 93,065.31, 128,429.55 and 50,624.01

Step by Step Solution

1. Step 1: Write the proportion equation
   93,065.31 : 128,429.55 = 50,624.01 : x
2. Step 2: Convert to fraction form
   93,065.31/128,429.55 = 50,624.01/x
3. Step 3: Cross multiply
   93,065.31x = 128,429.55 × 50,624.01
4. Step 4: Simplify right side
   93,065.31x = 6,501,618,823.50
5. Step 5: Solve for x
   x = 6,501,618,823.50/93,065.31
6. Step 6: Final answer
   x = 69,860.82