Finding the Fourth Proportional to 92,436.70, 138,672.18 and 29,272.76

Step by Step Solution

1. Step 1: Write the proportion equation
   92,436.70 : 138,672.18 = 29,272.76 : x
2. Step 2: Convert to fraction form
   92,436.70/138,672.18 = 29,272.76/x
3. Step 3: Cross multiply
   92,436.70x = 138,672.18 × 29,272.76
4. Step 4: Simplify right side
   92,436.70x = 4,059,317,443.82
5. Step 5: Solve for x
   x = 4,059,317,443.82/92,436.70
6. Step 6: Final answer
   x = 43,914.56