Finding the Fourth Proportional to 139,080.78, 191,899.26 and 93,842.69

Step by Step Solution

1. Step 1: Write the proportion equation
   139,080.78 : 191,899.26 = 93,842.69 : x
2. Step 2: Convert to fraction form
   139,080.78/191,899.26 = 93,842.69/x
3. Step 3: Cross multiply
   139,080.78x = 191,899.26 × 93,842.69
4. Step 4: Simplify right side
   139,080.78x = 18,008,341,807.91
5. Step 5: Solve for x
   x = 18,008,341,807.91/139,080.78
6. Step 6: Final answer
   x = 129,481.17