Finding the Fourth Proportional to 99,434.72, 149,092.59 and 67,453.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,434.72 : 149,092.59 = 67,453.10 : x
2. Step 2: Convert to fraction form
   99,434.72/149,092.59 = 67,453.10/x
3. Step 3: Cross multiply
   99,434.72x = 149,092.59 × 67,453.10
4. Step 4: Simplify right side
   99,434.72x = 10,056,756,637.07
5. Step 5: Solve for x
   x = 10,056,756,637.07/99,434.72
6. Step 6: Final answer
   x = 101,139.28