Finding the Fourth Proportional to 111,449.25, 153,802.80 and 61,148.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111,449.25 : 153,802.80 = 61,148.25 : x
2. Step 2: Convert to fraction form
   111,449.25/153,802.80 = 61,148.25/x
3. Step 3: Cross multiply
   111,449.25x = 153,802.80 × 61,148.25
4. Step 4: Simplify right side
   111,449.25x = 9,404,772,065.10
5. Step 5: Solve for x
   x = 9,404,772,065.10/111,449.25
6. Step 6: Final answer
   x = 84,386.14