Finding the Fourth Proportional to 109,729.69, 151,427.27 and 59,428.69

Step by Step Solution

1. Step 1: Write the proportion equation
   109,729.69 : 151,427.27 = 59,428.69 : x
2. Step 2: Convert to fraction form
   109,729.69/151,427.27 = 59,428.69/x
3. Step 3: Cross multiply
   109,729.69x = 151,427.27 × 59,428.69
4. Step 4: Simplify right side
   109,729.69x = 8,999,124,056.38
5. Step 5: Solve for x
   x = 8,999,124,056.38/109,729.69
6. Step 6: Final answer
   x = 82,011.75