Finding the Fourth Proportional to 138,802.82, 191,870.72 and 123,843.74

Step by Step Solution

1. Step 1: Write the proportion equation
   138,802.82 : 191,870.72 = 123,843.74 : x
2. Step 2: Convert to fraction form
   138,802.82/191,870.72 = 123,843.74/x
3. Step 3: Cross multiply
   138,802.82x = 191,870.72 × 123,843.74
4. Step 4: Simplify right side
   138,802.82x = 23,761,987,561.29
5. Step 5: Solve for x
   x = 23,761,987,561.29/138,802.82
6. Step 6: Final answer
   x = 171,192.40