Finding the Fourth Proportional to 112,243.30, 154,899 and 61,259.29

Step by Step Solution

1. Step 1: Write the proportion equation
   112,243.30 : 154,899 = 61,259.29 : x
2. Step 2: Convert to fraction form
   112,243.30/154,899 = 61,259.29/x
3. Step 3: Cross multiply
   112,243.30x = 154,899 × 61,259.29
4. Step 4: Simplify right side
   112,243.30x = 9,489,002,374.46
5. Step 5: Solve for x
   x = 9,489,002,374.46/112,243.30
6. Step 6: Final answer
   x = 84,539.59