Finding the Fourth Proportional to 112,760.65, 155,566.29 and 64,365.30

Step by Step Solution

1. Step 1: Write the proportion equation
   112,760.65 : 155,566.29 = 64,365.30 : x
2. Step 2: Convert to fraction form
   112,760.65/155,566.29 = 64,365.30/x
3. Step 3: Cross multiply
   112,760.65x = 155,566.29 × 64,365.30
4. Step 4: Simplify right side
   112,760.65x = 10,013,071,167.11
5. Step 5: Solve for x
   x = 10,013,071,167.11/112,760.65
6. Step 6: Final answer
   x = 88,799.34