Finding the Fourth Proportional to 123,047.78, 169,802.86 and 71,374.01

Step by Step Solution

1. Step 1: Write the proportion equation
   123,047.78 : 169,802.86 = 71,374.01 : x
2. Step 2: Convert to fraction form
   123,047.78/169,802.86 = 71,374.01/x
3. Step 3: Cross multiply
   123,047.78x = 169,802.86 × 71,374.01
4. Step 4: Simplify right side
   123,047.78x = 12,119,510,888.45
5. Step 5: Solve for x
   x = 12,119,510,888.45/123,047.78
6. Step 6: Final answer
   x = 98,494.35