Finding the Fourth Proportional to 53,776.66, 80,533.50 and 46,428.34

Step by Step Solution

1. Step 1: Write the proportion equation
   53,776.66 : 80,533.50 = 46,428.34 : x
2. Step 2: Convert to fraction form
   53,776.66/80,533.50 = 46,428.34/x
3. Step 3: Cross multiply
   53,776.66x = 80,533.50 × 46,428.34
4. Step 4: Simplify right side
   53,776.66x = 3,739,036,719.39
5. Step 5: Solve for x
   x = 3,739,036,719.39/53,776.66
6. Step 6: Final answer
   x = 69,528.99