Finding the Fourth Proportional to 112,528.65, 155,304.24 and 64,784.01

Step by Step Solution

1. Step 1: Write the proportion equation
   112,528.65 : 155,304.24 = 64,784.01 : x
2. Step 2: Convert to fraction form
   112,528.65/155,304.24 = 64,784.01/x
3. Step 3: Cross multiply
   112,528.65x = 155,304.24 × 64,784.01
4. Step 4: Simplify right side
   112,528.65x = 10,061,231,437.20
5. Step 5: Solve for x
   x = 10,061,231,437.20/112,528.65
6. Step 6: Final answer
   x = 89,410.40