Finding the Fourth Proportional to 140,123.51, 193,368.62 and 76,460.21

Step by Step Solution

1. Step 1: Write the proportion equation
   140,123.51 : 193,368.62 = 76,460.21 : x
2. Step 2: Convert to fraction form
   140,123.51/193,368.62 = 76,460.21/x
3. Step 3: Cross multiply
   140,123.51x = 193,368.62 × 76,460.21
4. Step 4: Simplify right side
   140,123.51x = 14,785,003,943.47
5. Step 5: Solve for x
   x = 14,785,003,943.47/140,123.51
6. Step 6: Final answer
   x = 105,514.09