Finding the Fourth Proportional to 139,048.76, 191,887.72 and 75,386.61

Step by Step Solution

1. Step 1: Write the proportion equation
   139,048.76 : 191,887.72 = 75,386.61 : x
2. Step 2: Convert to fraction form
   139,048.76/191,887.72 = 75,386.61/x
3. Step 3: Cross multiply
   139,048.76x = 191,887.72 × 75,386.61
4. Step 4: Simplify right side
   139,048.76x = 14,465,764,522.96
5. Step 5: Solve for x
   x = 14,465,764,522.96/139,048.76
6. Step 6: Final answer
   x = 104,033.75